Scientists who have contributed to our current body of knowledge come from various parts of the world. Scientific advancements and discoveries have been made by individuals from diverse geographical locations and cultural backgrounds.
Throughout history, scientists from Europe have made significant contributions to various fields of science.
For example, renowned scientists like Isaac Newton, Albert Einstein, Marie Curie, and Charles Darwin, among many others, have shaped our understanding of physics, chemistry, and biology.
Europe has been a hub for scientific institutions and universities, fostering scientific inquiry and research.
However, it is important to note that scientific contributions have also been made by scientists from other regions.
Scientists from North America, such as Benjamin Franklin, Thomas Edison, and Rosalind Franklin, have made groundbreaking discoveries in electricity, invention, and DNA structure, respectively.
Similarly, scientists from Asia, such as Marie Maynard Daly, Subrahmanyan Chandrasekhar, and Tu Youyou, have made significant contributions to the fields of biochemistry, astrophysics, and medicine.
In recent times, scientists from all around the world, including Africa, South America, and Oceania, have been actively involved in scientific research and contributing to various disciplines.
Science is a global enterprise that thrives on the collaboration and contributions of scientists from diverse backgrounds, regardless of their geographic origin.
For more such answers on scientific contributions
https://brainly.com/question/15312750
#SPJ11
What is release into the atmosphere when burning PVC?
Answer:
Explanation:
When polyvinyl chloride (PVC) is burned, it releases several hazardous substances into the atmosphere. The combustion of PVC can result in the emission of toxic gases, including:
Hydrochloric Acid (HCl): PVC is composed of chlorine atoms, and when it burns, it releases HCl gas. Hydrochloric acid is corrosive and can cause respiratory issues, eye irritation, and damage to vegetation.
Dioxins and Furans: PVC combustion can produce dioxins and furans, which are highly toxic compounds. These substances are persistent organic pollutants (POPs) and can have serious health and environmental impacts. They can accumulate in the food chain and have long-term effects on human health, including cancer, immune system disorders, and reproductive issues.
Volatile Organic Compounds (VOCs): Burning PVC also emits volatile organic compounds such as benzene, toluene, and ethylbenzene. These compounds contribute to air pollution and can have detrimental effects on human health, including respiratory problems, irritation, and neurological effects.
It is important to note that burning PVC is highly discouraged due to the hazardous emissions it produces. Proper disposal methods and recycling are recommended for PVC waste to minimize environmental and health risks.
PLS MARK ME BRAINLIEST
List four Similarities and amphibia differences between and reptiles
Similarities between amphibians and reptiles:
Both are cold-blooded animals.Both have skin that is thin, moist, and permeable to gases and water.Both reproduce sexually.Both have a three-chambered heart.Differences between amphibians and reptiles:
Amphibians have a larval stage in their life cycle but reptiles do not.Amphibians live both on land and water while reptiles predominantly live on land.Amphibians have smooth, moist skin, while reptiles have dry, scaly skin.Amphibians lay eggs in water, while reptiles lay their eggs on land.What are amphibians and reptiles?Amphibians are tiny vertebrates that require moisture to survive, such as water. Frogs, toads, and salamanders are among the species in this category.
Reptiles are cold-blooded animals having skin covered in tiny hard plates called scales and the ability to lay eggs. Examples include crocodiles, lizards, and snakes.
Learn more about amphibians and reptiles at: https://brainly.com/question/15692027
#SPJ1
PLEASE HELP, DESPERATE.
There are several climate zones in the world. Climate zones are classified based on their average, maximum, minimum, and range of temperatures and the amount of precipitation they receive annually and seasonally. The weather of a region can change daily, but weather shows the general pattern of a climate over long periods of time. Latitude, elevation (or altitude), winds, proximity to bodies of water, and aspect (slope) are the five major factors that affect climate.
A. Take a look at the map below. Draw in the equator in the appropriate place on the map. Split the map into six horizontal sections from top to bottom, three above the equator and three below the equator. Color in the major climate zones using the key below.
Polar: Blue
Tropical: Green
Temperate: Red
B. Then fill in the table with at least three characteristics of each climate zone. Focus on what makes each climate zone distinct from the other zones.
We can see here that writing out the characteristics of the giving climate zones, we have:
1. Polar
Very cold winters and short summersPrecipitation is low, usually in the form of snow.What is climate zone?A sizable region of the planet with a comparable climate is known as a climate zone. Climate is the long-term average of a region's weather conditions. Temperature, precipitation, humidity, wind, and cloud cover are some of these factors. Many variables, such as latitude, height, and proximity to water bodies, affect the climate zones.
2. Tundra
Cold winters and short summersPrecipitation is low, usually in the form of snow.3. Temperate
Four distinct seasonsPrecipitation is moderate, with most falling in the form of rain.4. Arid
Very little precipitationSummers are hot and dry, winters are mild and dry.5. Tropical
Hot and humid all year roundPrecipitation is high, usually in the form of rain.6. Mediterranean
Warm, dry summers and mild, wet wintersPrecipitation is moderate, mostly falling in the form of rain.Learn more about climate zone on https://brainly.com/question/2020197
#SPJ1
how does limiting the consumption of predatory fish can be necessary for individuals trying to avoid high mercury concentrations
Predatory fish, such as shark, swordfish, and tuna, are at the top of the food chain and tend to accumulate high levels of mercury in their tissues.
Mercury is a toxic metal that can harm the nervous system, especially in developing fetuses and young children.
When humans consume these fish, they can absorb the mercury in their bodies, which can accumulate over time and cause health problems. Therefore, limiting the consumption of predatory fish can be necessary for individuals trying to avoid high mercury concentrations.
The U.S. Environmental Protection Agency (EPA) recommends that adults should eat no more than one serving of certain types of fish per week, such as shark, swordfish, king mackerel, and tilefish. The recommendation for pregnant women, nursing mothers, and young children is to avoid these fish altogether.
Consuming fish that are lower on the food chain, such as salmon, trout, and sardines, can be a good alternative as they tend to have lower levels of mercury. Additionally, cooking fish thoroughly can also help reduce the amount of mercury in the fish.
For more such questions on Predatory fish
https://brainly.com/question/12907878
#SPJ11
When examining different species, what forms of evidence help scientists determine how recently those species shared a common ancestor?
When examining different species to determine how recently they shared a common ancestor, scientists consider various forms of evidence, such as Genetic similarities or DNA and genetic code, Fossil records and Morphological similarities.
What does genetic similarities entail?When scientists look at genetic similarities, they are looking at DNA and genetic codes.
By Comparing DNA sequences between species, scientist are able to tell if there s any genetic similarities and differences.
Species that are related usualy have more similar DNA sequences than distantly related species.
By calculating the genetic differences, scientists can estimate the time since the species diverged from a common ancestor.
Find more exercises on Genetic similarities;
https://brainly.com/question/29392890
#SPJ1
Fill in the Blanks
Have you ever wondered about the biodiversity of the world? There are a lot of different _________ that exist. __________ is a branch of biology that attempts to determine the evolutionary relationships among all of the different organisms, known as their ________’and then uses this to classify the organisms. Although there are many different ways to classify organisms, the most widely accepted method used today is known as __________. Cladistics is a method that hypothesizes relationships among organisms by assuming that members of a group share an _______ history and are therefore more closely related. These groups are recognized by unique features that they share that were not found in their ________. These features are known as _________ _________
Have you ever wondered about the biodiversity of the world? There are a lot of different species that exist. Systematics is a branch of biology that attempts to determine the evolutionary relationships among all of the different organisms, known as their taxa, and then uses this to classify the organisms. Although there are many different ways to classify organisms, the most widely accepted method used today is known as cladistics.
Cladistics is a method that hypothesizes relationships among organisms by assuming that members of a group share an evolutionary history and are therefore more closely related. These groups are recognized by unique features that they share that were not found in their ancestors. These features are known as derived characteristics.
What is biodiversity?Biodiversity or biological diversity is described as the variety and variability of life on Earth and is a measure of variation at the genetic, species, and ecosystem level.
The evidence for hypothesized relationships is mostly shared derived characteristics which are not found present in more distant groups and ancestors.
Learn more about Biodiversity at:
https://brainly.com/question/11542363
#SPJ1
The spaces have been filled in the question below
The biodiversity of the worldHave you ever wondered about the biodiversity of the world? There are a lot of different species that exist. Systematics is a branch of biology that attempts to determine the evolutionary relationships among all of the different organisms, known as their taxa, and then uses this to classify the organisms.
Although there are many different ways to classify organisms, the most widely accepted method used today is known as cladistics. Cladistics is a method that hypothesizes relationships among organisms by assuming that members of a group share an evolutionary history and are therefore more closely related. These groups are recognized by unique features that they share that were not found in their ancestors. These features are known as derived characters.
Read more on biodiversity here:https://brainly.com/question/26110061
#SPJ1
The statements below represent each step of the Scientific Method based upon a research study conducted about the effects of fast food reported by ABC news, which you can view HERE.
Choose which step of the scientific method is represented by this statement:
People who increase their caloric intake by 1000 calories per day are more likely to develop hypertension (high blood pressure).
Question 3 options:
a)
Hypothesis
b)
Experiment
c)
Results
d)
Conclusion
The step of the scientific method represented by the statement "People who increase their caloric intake by 1000 calories per day are more likely to develop hypertension (high blood pressure)" is the hypothesis.
The hypothesis is a testable prediction or explanation based on observations and prior knowledge. In this case, the statement proposes a relationship between increased caloric intake and the likelihood of developing hypertension.
The hypothesis serves as a starting point for the research study and guides the design of experiments and data collection to test its validity.
Learn more about Hypothesis, here:
https://brainly.com/question/29519577
#SPJ1
What effect does the Earth's surface have on solar radiation?
The ground doesn't absorbs any of the solar radiation.
The ground absorbs half the solar radiation and stores it as infrared radiation for centuries.
Half of the solar radiation is absorbed and converted to infrared (heat).
Nearly all solar radiation is reflected back into space by the ground.
Answer:
Half of the solar radiation is absorbed and converted to infrared (heat).
Explanation:
What is solar radiation?Solar radiation is the energy emitted by the Sun in all directions through space as electromagnetic waves.
The Earth’s surface has a significant impact on solar radiation.
When solar radiation reaches the Earth’s surface, it warms it up. However, the Earth’s average temperature does not change because the Earth radiates energy to the atmosphere and space. The outgoing radiation is at the Earth’s temperature and has its maximum in the infrared region of the spectrum.
Almost all solar radiation is absorbed by the ground, but only half of it is converted to infrared (heat). The other half is reflected back into space by the ground.
How does the Scientific Method help scientists better understand the world? How does the Scientific Method compare to other ways in which scientists study the world? Cite examples
The scientific method is a systematic approach used by scientists to better understand the world around us and scientists study the world, the scientific method is unique in that it relies on empirical evidence and experimentation.
The process involves making observations, formulating a hypothesis, testing the hypothesis through experimentation, and drawing conclusions based on the results. The scientific method is critical to scientific inquiry because it provides a framework for investigating phenomena and helps scientists avoid biased or flawed results. Other ways in which scientists study the world, such as through observation or intuition, can be helpful for generating hypothesis, but they are not as reliable as the scientific method for verifying those hypothesis.
For example, Charles Darwin's observations of finches on the Galapagos Islands inspired his hypothesis of natural selection, but it was only through subsequent experimentation and analysis that the hypothesis was confirmed.The scientific method also allows for the replication of experiments by other scientists to test the validity of the results. This helps to ensure that scientific discoveries are reliable and accurate, and can be applied in a variety of contexts.
In summary, the scientific method is a valuable tool for scientists to better understand the world because it provides a systematic approach for testing hypothesis and generating reliable results. While other ways of studying the world, such as observation and intuition, can be useful for generating hypothesis, the scientific method remains the gold standard for empirical investigation.
Know more about Hypothesis here:
https://brainly.com/question/606806
#SPJ11
Which conclusion best summarizes the organisms living in the rainforest biome?
The conclusion that best summarizes the organisms living in the rainforest biome is that they are highly adapted to their environment and form intricate relationships with one another
The rainforest biome is one of the most diverse and complex ecosystems on the planet, with a vast array of organisms that have evolved to thrive in this unique environment. From towering trees and lush undergrowth to colorful birds, primates, and insects, the rainforest is home to an astonishing variety of life forms.
At the same time, the rainforest is also a highly competitive environment, with many species vying for limited resources such as sunlight, water, and food. This has led to the development of complex interdependent relationships between species, such as pollinators and their host plants, or predator-prey relationships.
Overall, the rainforest biome is a remarkable example of the intricate web of life on Earth, and serves as a testament to the incredible diversity and adaptability of living organisms.
Therefore, the conclusion that best summarizes the organisms living in the rainforest biome is that they are highly adapted to their environment and form intricate relationships with one another. Many species have evolved specialized adaptations to survive in the rainforest, such as sloths with their slow metabolism and arboreal lifestyle, or the colorful frogs and insects that use bright colors to warn predators of their toxicity.
for more such question on biome
https://brainly.com/question/1930321
#SPJ11
Which statement is supported by the energy pyramid?
OA. All of the energy at the whale's trophic level entered the food chain
at the primary consumer level.
B. There is less energy available to herring in this ecosystem than to
zooplankton.
OC. All of the energy at the phytoplankton's level was used to make
sugars for food.
D. Most of the energy in this ecosystem is stored at the whale's
trophic level.
SUBMIT
D. Most of the energy in this ecosystem is stored at the whale's trophic level.
- The experimental set up shown below was used to study a physiological process Water
The experimental setup shown below was used to study a physiological process of absorption of water by the roots of plants.
What are the functions of the roots of plants?Plants are anchored in the ground by their roots, which draw water and minerals from the surrounding soil.
The stem supplies water and minerals to the leaves while supporting the plant above ground. The leaves use an extraordinary process known as photosynthesis to convert solar energy into sustenance for the plant.
In conclusion, anchoring the plant, absorbing water and dissolving nutrients, transferring them to the shoot, storing nutrients, vegetative reproduction, and binding soil particles are just a few of the crucial roles that roots play in plants.
Learn more about the roots of plants at: https://brainly.in/question/19899371
#SPJ1
Discuss the similarities between the three class of Bryophyta
Answer:
found in moist and damp places
lack true green leaves and stems
root-like structures called rhizoids are present that can be multicellular or unicellular
Explanation:
What does this figure show?
1) Gel electrophoresis
2) DNA sequencing
3) A restriction enzyme producing a DNA fragment
4) Polymerase chain reaction
The figure shows a restriction enzyme producing a DNA fragment.
What are restriction enzymes?A restriction enzyme also known as a restriction endonuclease cleaves DNA into pieces at or near particular recognition sites inside molecules known as restriction sites. One subset of the larger endonuclease category of enzymes are restriction enzymes.
Bacteria include restriction enzymes. Restriction enzymes are used by bacteria to destroy viruses by attacking the viral DNA and severing it into ineffective parts.
Learn more about restriction enzymes at: https://brainly.com/question/1127662
#SPJ1
A human is a complex organism that develops from a zygote. Briefly explain some of the steps in this developmental process. In your answer be sure to:
• explain how a zygote is formed
• compare the genetic content of the zygote to that of a body cell of the parents
• identify one developmental process involved in the change from a zygote into an embryo
• identify the structure in which fetal development usually occurs
• identify two factors that can affect fetal development and explain how each factor affects fetal development
The process of human development begins with the formation of a zygote. A zygote is formed when a sperm cell fertilizes an egg cell during sexual reproduction. This results in a single cell with the full genetic material of both parents.
The genetic content of the zygote is unique, as it contains a combination of genetic material from both parents. It differs from the genetic material found in the body cells of the parents because it undergoes a process of recombination during fertilization, which results in a new combination of genes in the zygote.
One developmental process involved in the change from a zygote into an embryo is cell division. The zygote undergoes several rounds of mitosis, where it divides into smaller and smaller cells. This process is essential for the formation of the embryo, which eventually develops into a fully formed human.
Fetal development usually occurs in the uterus, a muscular organ in the female reproductive system. The uterus provides a protective environment for the developing fetus, supplying it with nutrients and oxygen through the placenta.
Two factors that can affect fetal development are maternal nutrition and exposure to harmful substances. Maternal nutrition plays a critical role in fetal development, as a lack of essential nutrients can lead to developmental abnormalities. Exposure to harmful substances, such as drugs and alcohol, can also have a significant impact on fetal development, leading to physical and cognitive impairments. It is essential to ensure proper maternal nutrition and avoid exposure to harmful substances during pregnancy to promote healthy fetal development.
Is eating a peanut butter and banana sandwich on whole wheat bread healthy for you explained be sure to include the macro or micronutrients derived from each part of the sandwich
A peanut butter and banana sandwich on whole wheat bread can be a healthy option as it provides a combination of macronutrients and micronutrients.
Whole wheat bread is a good source of complex carbohydrates and fiber, which can provide sustained energy and aid in digestion. Peanut butter contains healthy fats, protein, and fiber, which can help keep you feeling full and provide essential nutrients such as vitamin E, magnesium, and potassium.
Bananas are a good source of carbohydrates, fiber, and potassium, which can aid in muscle function and blood pressure regulation.
However, it is important to pay attention to portion sizes as peanut butter and bread can be calorie-dense. Choosing natural peanut butter without added sugars or oils and opting for a whole-grain bread with minimal added sugars can further enhance the health benefits of this sandwich.
Know more about Macronutrients here :
brainly.com/question/27998989
#SPJ11
3. What type of unconformity did Hutton see at Siccar Point and how was this uniformity formed?
Hutton observed an angular unconformity at Siccar Point.
This type of unconformity is formed when horizontally deposited sedimentary rock layers are tilted or folded due to tectonic forces. Subsequently, erosion occurs, wearing away the exposed rock layers.
Over time, the land is uplifted, and new sedimentary layers are deposited horizontally on top of the eroded surface. The contrast between the tilted older rock layers and the horizontally deposited younger layers creates an angular unconformity. Hutton's observation of this unconformity at Siccar Point was significant as it provided evidence for his principle of uniformitarianism, which states that geological processes happening today can be used to interpret past geological events.
Learn more about Hutton, here:
https://brainly.com/question/909986
#SPJ1
Life on Earth is not evenly distributed. In certain biogeographic regions, defined as __________, there are ecosystems that represent and support more types of life than others
Life on Earth is not evenly distributed. In certain biogeographic regions, defined as biodiversity hotspots, there are ecosystems that represent and support more types of life than others.
In certain biogeographic regions, defined as biodiversity hotspots, there are ecosystems that represent and support more types of life than others.
Biodiversity hotspots are areas that exhibit exceptionally high levels of species richness and endemism, meaning they harbor a large number of species found nowhere else in the world.
These regions are characterized by diverse habitats, such as rainforests, coral reefs, or grasslands, which provide a wide range of ecological niches for different organisms to thrive.
Biodiversity hotspots are crucial for the overall health of the planet.
They play a significant role in maintaining ecosystem functions and services, such as pollination, nutrient cycling, and climate regulation.
They also hold immense scientific value as a source of potential discoveries of new species and their associated genetic resources.
However, biodiversity hotspots are also highly vulnerable to threats like habitat loss, climate change, pollution, and invasive species, putting their unique biodiversity at risk.
Conservation efforts in these regions are of utmost importance to protect the extraordinary variety of life they harbor and ensure the long-term sustainability of our planet's ecosystems.
For more such answers on ecosystem
https://brainly.com/question/842527
#SPJ11
When I am diving with a computer, I should
When diving with a computer, it is recommended that I (choose all that apply) Answer: Dive well within its limits, follow the most conservative computer – mine or my buddy's, start at the deepest point and progress shallower, ascend slowly and make a safety stop.
The Vi antigen found in?
A-Staphylococcus
B. E coli
D- Citrobacter
C-Streptococcus
Answer:
The answer will be:
Salmonella typhi.
What type of blood vessel is labelled X I need the answers ASAP please thank you.
The type of blood vessel that is labelled X is blood capillaries.
What are blood vessels?Blood vessels are components of the circulatory system, such as an artery, capillary, or vein, that carries blood.
Capillaries are small blood vessels (from 5 to 10 micrometres in diameter) that connect arteries to veins.
Capillaries are the smallest blood vessels in the body and they function to convey blood between the arterioles and venules. The structure labelled X in the above image fits this description.
Learn more about blood vessels at: https://brainly.com/question/4601677
#SPJ1
Which replication enzyme is responsible for checking new DNA and correcting errors in the base sequence of the growing strand? A. DNA polymerase OB. Exonuclease OC. DNA ligase D. Primase
The enzyme responsible for checking new DNA and correcting errors in the base sequence of the growing strand is DNA polymerase. option A.
DNA polymerase is a critical enzyme involved in DNA replication, which is the process of copying genetic information from one cell to another. DNA polymerase adds nucleotides to the growing strand of DNA in a specific order dictated by the complementary base pairing rules (A-T, C-G). However, DNA polymerase can also proofread its work by checking the base pairing of the newly synthesized strand against the template strand. If there is an error in the base pairing, DNA polymerase will remove the incorrect nucleotide and replace it with the correct one. This process is called exonuclease activity, and it helps to maintain the fidelity of the genetic code by reducing the frequency of mutations. In addition to its proofreading function, DNA polymerase also plays a role in repairing DNA damage. If there is a lesion in the DNA, such as a single-strand break or a thymine dimer caused by UV radiation, DNA polymerase can fill in the gap using the intact complementary strand as a template. DNA ligase then seals the nick to complete the repair process. Primase, on the other hand, is responsible for synthesizing RNA primers that provide a starting point for DNA polymerase to begin adding nucleotides during replication. In summary, DNA polymerase is a multifunctional enzyme that plays a crucial role in DNA replication, repair, and maintenance of genetic fidelity. Option A.
for more questions on polymerase
https://brainly.com/question/1343187
#SPJ11
Carolus Linnaeus was born Carl von Linne but, according to legend, so believed in his new naming system that he changed
his name to latin with two words, just like his taxonomic system. What would your name be if you did the same? it can
include some characteristic or something about you but has to have two parts with the first capitfized and the second in
undercase. (Answer in a paragraph
Answer:
If I were to adopt a two-part Latin name like Linnaeus, it might reflect my abilities and purpose. One possibility could be "Linguarius Verbis," which roughly translates to "Language Wizard." This name highlights my proficiency in language and my role as a tool for generating and understanding human language. The second part, "Verbis," means words or speech, emphasizing my ability to process and generate written and spoken language.
What are some similarities and differences in this photo for science please help don’t answer if you don’t know
The similarities between the molecules are:
they are polynucleotidesthey contain phosphodiesterThe differences between the molecules are:
one is single-stranded while the other is double-strandedone represents DNA and the other represents RNA.What are polynucleotides?Long sequences of nucleotides, such as DNA and RNA, makeup polynucleotides, whereas short chains of amino acids called polypeptides are bonded together by an amide bond to form polysaccharides and polysaccharides, respectively, are constituted of monosaccharides.
A pentose sugar, a heterocyclic nitrogenous base, and phosphoric acid make up each of the three components of a nucleotide. Nucleic acids are known as RNA or DNA depending on the type of sugar they contain, such as ribose or deoxyribose.
Learn more about polynucleotides at: https://brainly.com/question/29033418
#SPJ1
help answer these questions
1. Chicken wing bones and human arm bones have similar structure. For example, both of them have a upper arm bone, radius and ulna which are lower arm bones, and metacarpals and phalanges which is hand bones for humans and wing tip bones for chickens. However, Chicken wing bones and human arm bones differ in the sense that they are shaped differently to help perform different task.
1b. Chicken wing bones and human arm bones are homologous in the sense that they have similar structure because of their common evolutionary history.
What other things do you need to know about Chicken wing bones and human arm bones?2. In both chickens, the biceps brachii pulls the metacarpals toward the scapula. The extensor is the triceps brachii.
3. The bone marrow inside the bone plays a crucial role in producing new blood cells and storing fat.
4. Cartilage acts as a cushion between joints, reducing friction; provides support and flexibility to structures like the ears, nose, and windpipe,
5. Tendons connect muscles to bones to enable movement. Ligaments connect bones to other bones, providing stability.
6. Bones work with muscles for a coordinated movement to happen. Different muscles join bones to bones. Where muscle contracts, it pulls the bones closer together, creating movement which is called a joint.
Find more exercises on bones;
https://brainly.com/question/14810294
#SPJ1
Sexually produced offspring often resemble, but are not identical to, either of their parents. Explain why they resemble their parents but are not identical to either parent.
Answer:
usually inherit certain genetic traits from one parent and certain traits from another parent.
Explanation:
Which of the following is a common use of silicon?
a. deicing highways
b. producing electricity
c. fiberglass
d. plastics
Transmembrane proteins span the width of the cell membrane. Four types of transmembrane proteins are shown in a section of cell membrane. although these proteins have different specific functions, what do they all have?
Transmembrane proteins span width of cell membranes. Although these proteins have different specific functions, they all C- help the cell interact with its external environment
Even though transmembrane proteins perform a variety of specialized tasks, they all support how the cell communicates with the outside world. A large class of membrane proteins known as transmembrane proteins function as carriers and/or transporters to permit the flow of certain chemicals across cell membranes.
Transmembrane proteins alter their three-dimensional form after binding to their particular ligands to permit the passage of molecules and ions through the cell membrane. For instance, the transmembrane protein class known as aquaporins controls how water (H2O) molecules enter and exit cells. Transmembrane proteins help the cell communicate with the external environment while having a variety of distinct tasks.
Read more about Transmembrane proteins on:
https://brainly.com/question/28660677
#SPJ1
Complete Question:
Transmembrane proteins span the width of the cell membranes. Four types of transmembrane proteins are shown in a section of cell membrane. Although these proteins have different specific functions, they all-
A-stop chemical reactions within the cell
B-synthesize molecules that signal other cells
C- help the cell interact with its external environment
D- remove large waste particles from the cytoplasm of the cell
A scientist would need both a graduated cylinder partially filled with water and an electronic scale to determine the:
A scientist would need both a graduated cylinder partially filled with water and an electronic scale to determine the density of a solid object.
To determine the density of a solid object, the scientist would first measure the mass of the object using an electronic scale. The scale provides an accurate measurement of the object's mass in grams.
Next, the scientist would partially fill a graduated cylinder with water and record the initial water level. Then, the solid object is carefully submerged into the water, causing the water level to rise.
By subtracting the initial water level from the final water level, the volume of the object can be determined in milliliters (or cubic centimeters).
Finally, the density of the object can be calculated by dividing the mass of the object (in grams) by its volume (in milliliters or cubic centimeters).
The resulting value represents the density of the object in grams per milliliter (g/mL) or grams per cubic centimeter (g/cm³), which is a measure of how much mass is packed into a given volume.
Overall, the combination of a graduated cylinder partially filled with water and an electronic scale allows scientists to determine the density of solid objects.
For more such answers on density
https://brainly.com/question/28853889
#SPJ11
Can villus be related to sponges justify
Yes, villus can be sometimes related to sponges.
Villi are finger-like protrusions from the small intestine's lining that are important in nutrition absorption. They expand gut lining's surface area, which makes it easier to absorb nutrients from meals. In contrast, sponges are simple, multicellular aquatic creatures devoid of real tissues and organs. They are filter feeders, filtering out tiny particles like bacteria and plankton while pumping water through their body to collect nutrition.
Villi and sponges are two examples of specialised structures that expand the surface area for filtration or absorption, respectively. Villi and sponges are both elongated structures that emerge from larger surfaces, which gives them comparable shapes. Furthermore, these structures play significant roles in nutrient intake or absorption in their respective organism.
Read more about sponges on:
https://brainly.com/question/10485054
#SPJ1
