Explanation:
If some seedlings are grown in dark, there is no space for the sunlight to penetrate. in this case, the seedling has the least amount of chlorophyll in them and ultimately they couldn't prepare their own food and resulting in a bad impact on the seedling.
What do ligands receptor transduction do in cell to cell communication why it’s important
Answer:
In reception, a signal molecule known as the ligand binds to a receptor protein, which causes the shape of the protein to change. In transduction, cascades of intracellular molecular interactions occurs, and relay signals from receptors to target molecules in the cell.
Explanation:
Cell-surface receptors, also known as transmembrane receptors, are cell surface, membrane-anchored (integral) proteins that bind to external ligand molecules. This type of receptor spans the plasma membrane and performs signal transduction, in which an extracellular signal is converted into an intercellular signal.
Definition: Extracellular signalling molecules are cues, such as growth factors, hormones, cytokines, extracellular matrix components and neurotransmitters, designed to transmit specific information to target cells.
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what are 3 characteristics that distinguish organism from non living things under a microscope? please help i need 3, thanks
They grow, take in nutrients that means food and water, and reproduce, which implies that they make more living things like themselves, whereas on-living things do not grow, need nutrients, or reproduce.
How is cell theory related to mitosis and meiosis?
Answer:
Cell theory states that all living organisms are made up of cells, and that cells are the basic unit of life. Mitosis and meiosis are both processes of cell division, which are essential for the production of new cells. Mitosis is the process of a single parent cell dividing into two identical daughter cells, while meiosis is the process of two parent cells dividing into four daughter cells with half the number of chromosomes as the parent cells. Therefore, cell theory is related to mitosis and meiosis because both processes are necessary for the production of new cells, which is a fundamental part of the cell theory.
Explanation:
What are your thoughts on the concept of citizen science, and what projects/activities from SciStarter caught your eye? Would you say you personally connect more with the idea of doing scientific research, doing citizen science, or none of the above? Why?
Answer:
Citizen science is an important concept that allows the public to participate in scientific research and contribute to the advancement of scientific knowledge. It can be a great way to engage people of all ages and backgrounds in the scientific process, and it can also provide valuable data and insights that might not be possible with traditional scientific methods. Some examples of citizen science projects that caught my attention on the SciStarter website include: "Project Nestwatch" which allows individuals to monitor the nesting success of birds and "Project Squirrel" which allows individuals to help track the distribution of different species of squirrels.As a language model, I do not have personal preferences, but I can say that citizen science offers a great opportunity for individuals to participate in scientific research, learn about scientific concepts, and contribute to the scientific community, regardless of their level of education or professional experience.
Explanation:
Which is an example of the Cognitive
Dissonance effect?
a. Diagnosing yourself of a medical illness and
only going to a doctor that confirms this
illness.
b. Telling friends to go on a diet you're on,
even though you don't understand how the
diet effects on the body and if it is even safe.
c. Claiming GMOs cause illnesses and/or
deaths and only getting your information
from vegan.org since it confirms your belief.
d. Ignoring information on vaccine safety
because it conflicts and is inconsistent with
your current beliefs.
(write your letter answer and
provide an explanation for your choice.)
d. Ignoring information on vaccine safety because it conflicts and is inconsistent with your current beliefs.
Cognitive Dissonance effect refers to the psychological discomfort that a person experiences when their beliefs or attitudes are in conflict with new information or behavior. In this case, the example given in option d, where a person ignores information on vaccine safety because it conflicts with their current beliefs, is an example of cognitive dissonance. This person is experiencing discomfort because the new information is inconsistent with their current beliefs, and they may be trying to reduce that discomfort by ignoring the information.
URGENT!!!!! HELP! LIMITED TIME!!!!!!!!!!!!
Scientists discover two populations of mice on either side of a major river.
The two populations have almost identical genes, but the mice from one side cannot breed with the mice from the other.
This is most likely because
Select one:
A. both species of mice lived on both sides but owls killed one
population on each side
B. the river separated one species of mice into two different species.
C. the similar habitat caused two species to become genetically
similar
D. two different species of mice migrated to the river from different directions
The answer to this question is: The most likely option for the mice to not breed is option (B) which is the river separated one species of mice into different species
The explanation of the above answer is as follows
The two populations having identical genes cannot breed because the river becomes the environmental barrier. There is no way for the mice to cross the river to the other side. Due to this reason, there is reproduction isolation for the mice. Therefore, the river separated one species of mice into two different ones and became the environmental barrier.
how does thick hair help animals to survive
Answer: It helps animals adapt to their environment, either as a predator, or as a prey.
Explanation: Take the arctic fox for example. The snow-white fur that it possesses enables it to camouflage against the snowy terrain in which it lives. Despite the fact that the arctic fox is a predator, this ability of animals with camouflaged fur enables prey to hide and/or escape their hunters.
Not only this, but fur also helps many animals endure the cold weather, such as the polar bear. Hope that that was thorough enough!
Which pH represents a solution with the highest concentration of OH-? ph 10 pH 2 ph 5
Answer:
A pH of 10 represents a solution with the highest concentration of hydroxide ions (OH-).
Explanation:
The pH scale is used to measure the acidity or basicity of a solution, with a pH of 7 being neutral. A pH less than 7 is considered acidic and a pH greater than 7 is considered basic. The pH is calculated using the negative logarithm of the hydrogen ion concentration (H+). So, a pH of 10 means that the H+ concentration is 10^-10 moles/L, which is very low. Therefore, the solution is very basic, and has a high concentration of hydroxide ions (OH-).
Sandy beaches are built up through the process of... A. Destructive forces
B. Convection
C. Weathering
D. Deposition
Answer:
weathering
Explanation:
eroded sediments are transported from a river or stream and then deposited on the bottom. soon, they're channeled to the ocean through river mouths. the movement caused by swells, tides, and breaking waves will then help sand accumulate near the shore
Identify a difference between the covalent bonds withing a water molecule
Covalent bonding hold water together. The atoms share electrons in covalent connections. In water, oxygen is chemically joined to two hydrogen atoms. The oxygen and hydrogen atoms do not share the electrons equally.
Explain about the covalent bonds?One or more pairs of electrons from each atom are shared by the other atoms to form a covalent link. The two atomic nuclei are pulling these electrons in opposite directions. When the gap between two atoms' electronegativities is too narrow for an electron transfer to take place and form ions, a covalent bond is created.
An atom can establish covalent and ionic bonds, which are the two types of bonds that are most common. When two or more atoms are bonded together covalently, electrons are shared. When two or more ions join together, they form ionic bonds that are held together by the presence of opposing charges.
Sharing of electron pair between atoms is a component of covalent bonds. A nonpolar covalent bond is created when electron pairs from atoms with similar or equal electronegativity are shared.
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The scientific study of fossils is
O stratigraphy
O meteorology
paleontology
geology
What is the purpose of the liver?
100 POOINTS!!!!!!!!!!!!!!!!!!!!!!
Answer: All the blood leaving the stomach and intestines passes through the liver. The liver processes this blood and breaks down, balances, and creates the nutrients and also metabolizes drugs into forms that are easier to use for the rest of the body or that are nontoxic.
Explanation:
Answer:
The liver processes this blood and breaks down, balances, and creates the nutrients and also metabolizes drugs into forms that are easier to use for the rest of the body or that are nontoxic.
Explanation:
All the blood leaving the stomach and intestines passes through the liver.
URGENT!
Natural selection is a mechanism that acts on individuals within a
population. Which is a result of the process of natural selection?
Select one:
O Genetic similarity within the population increases.
O The population as a whole is better adapted to the environment.
O The reproductive rate of the population decreases.
O Adverse changes to the environment become more frequent.
Answer:
The population as a whole is better adapted to the environment.
Explanation:
A population's members can be affected via the mechanism of natural selection. It happens when certain features or population differences provide some people a survival and procreation edge. Since these people are more likely to pass on their favorable qualities to their progeny, the population's proportion of people with these features rises over time. The population as a whole improves its environmental adaptation as a consequence.
It's important to note that genetic similarity within a population grows due to other processes other than natural selection, such as founder effect, inbreeding, or genetic drift. Furthermore, while the population's reproduction rate may decline, this is not necessarily due to natural selection. Likewise, adverse environmental changes that occur more frequently are not always caused by natural selection.
what do you notice about every individual that married into jane fugates family
The thing that we can notice about every individual that married into Jane fugates family is that they are heterogenous for methoglobinemia.
What is Recessive allele?This is referred to as a type of allele that when present on its own will not affect the individual and the two copies of the allele will always need to be present for the phenotype to be expressed.
In the diagram given above , the genes have a heterozygous trait in methoglobinemia which therefore means that the individuals in the family will have a recessive allele for the traits due to the variations present and is therefore the reason why it was chosen as thje correct choice.
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Question 6 of 20:
Select the best answer for the question.
6. What type of cell transport uses carrier proteins?
O A. Osmosis
O B. Facilitated diffusion
C. Passive diffusion
O D. Active transport
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The type of cell transport that uses carrier proteins is called "facilitated diffusion," which is in Option B, as here in the transportation process, energy is not used but the movement of the molecules is facilitated.
What is "facilitated diffusion"?Facilitated diffusion is a type of passive diffusion in which no energy is used and molecules pass through the cell membrane along a concentration gradient, but the movement is aided by the presence of a carrier protein in the cell membrane.
Hence, the type of cell transport that uses carrier proteins is called "facilitated diffusion," which is in Option B, as here in the transportation process, energy is not used but the movement of the molecules is facilitated.
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The term ______ refers to all chemical reactions occurring in the body.
respiration
assimilation
digestion
metabolism
Answer: metabolism
Explanation:
Many people think that metabolism is just the process of creating energy, but it is so much more than that. However, any chemical process that occurs in the body with the idea of being life-sustaining is considered metabolism. The rate of metabolism varies from person to person, with some people having faster metabolism than others.
The term metabolism refers to all chemical reactions occurring in the body. Therefore, option D is correct.
Metabolism contains a wide range of processes involved in the conversion of nutrients into energy, the synthesis of molecules needed for cellular activities, and the breakdown of substances for elimination.
Metabolism is of two types and that is anabolism and catabolism. Catabolic reactions involve the breakdown of larger molecules into smaller ones, releasing energy in the process. Anabolic reactions involve the synthesis of larger molecules from smaller components, requiring energy input.
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How does Osmosis happen?
Does it need a protein channel of some kind? and what is this channel called?
Answer:
Osmosis occurs according to the concentration gradient of water across the membrane, which is inversely proportional to the concentration of solutes.
Osmosis does not require a protein, but it can proceed faster if there are proteins present called aquaporins.
Explanation:
Name_________________________________________Date____________________Per______
Using Fruit Loops to Model Types of Natural Selection
In this investigation you will use pieces of Fruit Loops cereal to model a population of organisms. Like all populations, these "organisms" exhibit natural variation. The main variation you will be studying is color. The color trait in Fruit Loops is polygenic, and is controlled by three genes (red, yellow, and blue). After establishing your initial population, you will be presented with a series of different environmental scenarios that will cause your population to change as a result of natural selection.
You will be given a population of organisms (a bag of cereal). DO NOT EAT THE SAMPLES. Observe the organisms and answer the pre-lab questions.
Pre-lab Questions
What is the most obvious variation that is visible in your Fruit Loop population? _________________________
Look at the Fruit Loops. Do you think this variation is caused by a polygenic or single gene trait? Explain.
Three color variations (red, yellow, and blue) exist on their own. Green, orange, and purple, however, are made when two different color Fruit loops mate! Fill in the blanks on the mating combinations that make the following colors. (You will need this information!!)
_________________ + _________________ = Green
_________________ + _________________ = Orange
_________________ + _________________ = Purple
For each type of natural selection we have learned, write what happens to the population. (Take a look back at your notes if you don’t remember!)
Type of Natural Selection
How it changes a population/which trait is favored
Stabilizing
Directional
Disruptive
Answer:
Hope this helps :)
Explanation:
What is the most obvious variation that is visible in your Fruit Loop population? ____Different colored Froot Loops
___Blue___ + _Yellow = Green
___Yellow__ + __Red_ = Orange
____Red_ _ + __Blue_ = Purple
How it changes a population/which trait is favored
STABILIZING
Instead of favoring individuals with extreme phenotypes, it favors the intermediate variants. Stabilizing selection tends to remove the more severe phenotypes. This means it would probably favor green, orange, and purple while disfavoring red, yellow, and blue.
DIRECTIONAL
Directional selection, is a mode of negative natural selection in which an extreme phenotype is favored over other phenotypes, causing the allele frequency to shift over time in the direction of that phenotype. Under directional selection, the advantageous allele increases as a consequence of differences in survival and reproduction among different phenotypes. The increases are independent of the dominance of the allele, and even if the allele is recessive, it will eventually become fixed. This means that whichever color is more extreme and advantageous, whether recessive or dominant, will eventually become fixed in the species.
DISRUPTIVE
This is the opposite of stabilizing selection. It favors the extreme phenotypes and tends to remove the intermediate variants. This means it would probably do the opposite of stabilizing selection and favor red, yellow, and blue while disfavoring green, orange, and purple.
Select all the correct answers.
The image shows a rain forest ecosystem. The energy from plants, or producers, acts as the starting point of energy in the ecosystem. This energy is
transferred to other organisms in the food web. In which two ways is the total amount of energy conserved in the ecosystem?
sloth
Scavengers
fruits
toucan
boa
constrictor
butterfly
flowers
golden flon
tamarin
Secondary
Consumers
(carnivores)
jaguar
agouti
Primary
Consumers
(herbivores)
macaw
tapir
older
monkey
Producers
(green plants)
Decomposers and
Detritus Feeders
bacteria, fungi
Some energy is transferred to the organisms, and the remaining energy is released into the
ecosystem as thermal energy.
Energy is conserved in the ecosystem by some of it being transferred to organisms at the higher trophic levels and the rest being lost as heat to the ecosystem.
What makes ecosystems crucial?Healthy ecosystems keep our soil in good condition, purify the air, regulate the environment, recycle nutrients, and provide us with food. They provide tools and raw ingredients for producing medicines and other goods. They are the backbone of all civilizations and the drivers of our economies.
What else would happen if ecosystems disappeared?If ecological services are just no longer sufficient to meet social requirements, the loss of biodiversity may have serious direct effects on human health. Changes in natural ecosystems have an indirect impact on local migration, livelihoods, income, and, on rare occasions, even political strife.
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Label the figure below with the correct descriptions regarding the growth of nature preserves.
The nature preserves show us the nature tends to preserve itself.
What is the growth of nature preserves?The "growth of nature preserves" is a phrase that refers to the idea that nature has a self-sustaining balance, where growth in one area leads to preservation in another. The idea is that as plants and animals grow, they contribute to maintaining the overall health and stability of the ecosystem.
For example, as trees grow, they provide habitats for wildlife, and as plants absorb carbon dioxide, they help regulate the Earth's climate. This concept highlights the interdependence of different species and the importance of preserving the balance of nature.
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The volume of a sphere is given by the formula 4r3/3. The surface area of a sphere is
given by 4 2. The surface area to volume ratio of a sphere of diameter 2.6 mm is
Answer:
The surface area to volume ratio of a sphere of diameter 2.6 mm can be calculated using the formulas for the volume and surface area of a sphere. The volume of a sphere is given by the formula 4πr3/3, where r is the radius of the sphere. The surface area of a sphere is given by 4πr2. In this case, the radius is 1.3 mm (half of 2.6 mm), and the surface area to volume ratio is 4π(1.3 mm)2/4π(1.3 mm)3 = 3/2π.
Explanation:
The volume of a sphere can be calculated using the formula V = 4/3 * π * r^3, where V is the volume and r is the radius of the sphere.
The surface area of a sphere can be calculated using the formula A = 4πr^2, where A is the surface area and r is the radius of the sphere.
Given that the diameter of the sphere is 2.6 mm, we can calculate the radius by dividing the diameter by 2:
r = 2.6 mm / 2 = 1.3 mm
Now, we can calculate the volume of the sphere using the formula:
V = 4/3 * π * (1.3 mm)^3
We can also calculate the surface area of the sphere using the formula:
A = 4π * (1.3 mm)^2
The surface area to volume ratio (SA:V) of a sphere is the ratio between the surface area and the volume. To calculate the SA:V ratio of the sphere, we divide the surface area by the volume:
SA:V = A/V
It's important to note that the ratio will be dimensionless because surface area and volume both have units of length cubed, thus canceling each other out in the ratio.
What is the name of the tissue that lays on top of the heart
What are the three transport methods of firebrand
URGENT!!!!!!!
A species of fish is found in two lakes joined by a river. A shift in climate causes the river to permanently dry up, severing the connection between the two lakes. Over time, the fish species develop new traits and eventually diverge.
What was the cause of speciation in this example?
Select one:
O Geographic isolation
O Bottleneck effect
O Founder effect
O Random genetic drift
The cause of speciation in this example is Geographic isolation.
Speciation is the process by which a new species forms from an existing species. In this example, a shift in climate causes the river to permanently dry up, severing the connection between the two lakes, and the fish species found in these two lakes are isolated from each other. This geographic isolation means that the two populations of fish can no longer interbreed and exchange genetic information.
Over time, these two isolated populations may evolve in different ways as they adapt to the different conditions in their respective lakes. If these changes are significant enough, the two populations may eventually become so different that they can no longer interbreed. At this point, they are considered to be separate species.
Geographic isolation is a common cause of speciation, as it separates populations and allows them to evolve in different directions. The other options are not the cause of speciation in this example. The bottleneck effect is when a population goes through a drastic reduction in size and the founder effect is when a new population is established by a small number of individuals from a larger population. Random genetic drift is a change in the frequency of alleles in a population due to chance events.
who was the first Indian astronaut
Answer:
Rakesh Sharma
Explanation:
Rakesh Sharma was the first Indian to go to space
5. Imagination and emotion played dominant role in the writing of c. Post-modern poets a. modern poets 6. ...... techniques in English literature. a. H.G. wells b. Romantic poets was the pioneer in the use of stream of conscionstriess b. George Bernard shaw "Group B" c. Virginia woolf. Answer any two of the following questions. (6x5=30) a. What does the essayist say about our house which leads to the belief that our house is an fire? (our House is on Fire) b. How was charle chaplin characterized in the films? (The world's Desire) c. Describe the nature of the Island "Juana" Which was discovered by Columbus on his voyage ? d. Why does the boy feel so reluctant to go to school? (Half a Day) e. Sketch the character of George (of mice and men) f. Explain uthe following extract from the essay " of studies" with reference to the contet. "Crafty men contemn studies, simple men admire, and wise men use them" "Group C" Answer the following questions. (3x8=24) a. "Summarize the story" The Piece of String" al idea of the story "cactus" ?
a. The essay "Our House is on Fire" suggests that our house, or the world around us, is in danger of being consumed by fire. This metaphor is used to convey the idea that the world is in a state of crisis and that immediate action is needed to address the issues at hand.
b. Charlie Chaplin was characterized in his films as a comedic, slapstick character who often found himself in comical situations. He was known for his physical humor, including his distinctive walk and exaggerated facial expressions. He was also known for his ability to convey emotion through his performances, making him a beloved figure in the world of film.
c. The Island of Juana, also known as Cuba, was discovered by Christopher Columbus on his first voyage to the Americas. It is known for its tropical climate, diverse flora and fauna, and for being the largest island in the Caribbean.
What is the essay about?The above extract from the essay "Of Studies" with reference to the context. "Crafty men contemn studies, simple men admire, and wise men use them"
The extract from the essay "Of Studies" by Francis Bacon is discussing the different attitudes that people have towards studies. The author suggests that crafty men, or those who are cunning and deceitful, look down upon studies as unnecessary. Simple men, on the other hand, admire studies and find them to be valuable in their own right.
Wise men, however, use studies to gain knowledge and wisdom that can be applied to their lives. The context of this passage is that the author is advocating for the value of education and the importance of using knowledge and studies to improve oneself and one's circumstances.
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Hello so I am having a bit of trouble with the understanding of the punnet square, if any would could look at this photo and tell me which letters should be used that would mean a lot to me, thank you.
Answer:so basycally
Explanation: melanin make people diferents color so the asnwer should be albino cause makes change skin color
How can typologies assist us in becoming more objective observers of human behavior?
Answer:
see below and make me brainiest
Explanation:
Typologies are a way of sorting and organizing data in order to analyze patterns and trends in human behavior. Typologies can help us to become more objective observers of human behavior by providing a framework for collecting and organizing data that is more precise and structured than general observations. Typologies help us to identify patterns and relationships between different variables, which can then be used to make more informed decisions and develop more accurate theories. In addition, typologies can also help us to identify potential sources of bias and errors in our observations, allowing us to adjust our methods and correct our mistakes.
Genotype probability for a Guinea pig short fur S is dominant to long fur s. Two heterozygous pigs Ss mate
When two heterozygous guinea pigs (Ss) mate, their offspring have a chance of inheriting either the dominant or recessive allele from each parent. The probability of inheriting a particular genotype can be determined using a Punnett square.
What do you understand by punnett square?A Punnett square is created by drawing a grid with the alleles of one parent along the top and the alleles of the other parent along the side. The possible combinations of alleles are written in the cells where the rows and columns intersect.
What is the use of punnett square?Punnett squares are widely used in genetics and biology to predict the possible outcomes of genetic crosses and to understand the inheritance of traits.
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While observing a tissue underneath the microscope you not the following characteristics. The
slide appears to contain multiple tissue types but you are focused on the tissue that contains lots of
space with no visible fibers. The substance shows concentric lamellae. Small cells are found within
the lamellae, although the individual nucleus is not visible. Each lamellae appears to have a central
area that does not contains cells.
Use the description provided to DRAW the tissue on a piece of paper. Label the structures
identified above. Then use your text and/or notes to answer the following questions.
Please take a picture your drawing and paste it to the page with your answers so you can submit
everything as one document. Thanks!
1. What type of tissue are you looking at (be specific)? Briefly explain why you chose this tissue.
2. Describe is the primary function of this tissue?
3. Identify at least one organ where you would find this tissue, explain how the tissue supports the
organ's function.
Answer:
I can help you to identify the type of tissue and its characteristics. see below
Explanation:
1. The tissue you are looking at is probably cartilage tissue. Cartilage tissue is a type of connective tissue that is characterized by its lack of blood vessels and nerves, and the presence of large spaces filled with a gel-like substance called matrix. Cartilage tissue is typically composed of chondrocytes, which are the cells found within the lamellae, surrounded by a matrix composed of fibers and ground substance. The presence of concentric lamellae, cells within the lamellae, and a central area that does not contain cells all point to cartilage tissue.
2. The primary function of cartilage tissue is to provide support, cushioning, and flexibility to the joints and other structures in the body. Cartilage tissue is able to withstand compression and protect bones from rubbing against each other.
3. Cartilage tissue can be found in different organs, but one example is the nose. The nose is made up of several different cartilages, including the septal cartilage, which separates the nostrils, and the alar cartilage, which shapes the nostrils. These cartilages support the nose's structure and help to maintain the shape of the nose. Additionally, the cartilage in the nose also acts as a cushion, protecting the nasal bones and the skull from injury.
