Answer:
In the past was believed that species were fixed entities
Explanation:
Before Darwin's evolutionary theory (in which all living things arise through descendants with modification), Linnaeus had proposed that species were immutable entities. Although it was an erroneous concept, this belief enabled the development of a system for classifying and naming organisms. Indeed, Linnaeus is nowadays recognized as the father of taxonomy to create this system. This example shows that scientific knowledge is not based on factual information, but it is a process that progressively increases our understanding of the real world.
In history, there have been different scientific theories that have generated controversy and have been refuted over the years, for example, the heliocentric and geocentric theories.
A scientific theory is a term that refers to:
A set of concepts, phenomena, and properties, rules, or scientific laws that express the relationships between the observations of these concepts that explain a phenomenon.On the other hand, a scientific fact is a concept that refers to:
A verifiable and objective observation, in which the facts are identified with the observations.According to the above, the geocentric and heliocentric theories can be based on the concepts of fact and scientific theory because the scientific fact allowed the geocentric theory to be raised centuries ago from observation.
However, later this was refuted by the geocentric theory that did present a logical and objectively accepted explanation based on calculations and observation.
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Which of the following structures are found in eukaryotes, but not prokaryotes?
Choose 1 answer:
(Choice A) Golgi body
(Choice B) Cytosol
(Choice C) Cilia
(Choice D) Cell membrane
The structures that are found in eukaryotes, but not prokaryotes are:
Golgi bodyCilia. Both prokaryotic and eukaryotic cells contain cytosol and cell membrane structures.The Golgi apparatus is known as a cellular organelle whose function is to handle the proteins synthesized by the endoplasmic reticulum.
It is found in eukaryotic cells and is responsible for completing the production process of certain proteins.
Cilia are a series of short and numerous mobile extensions of the plasma membrane that line the cell surface of some eukaryotic cells.
Prokaryotic cells form living unicellular organisms, they present their genetic material dispersed in the cytoplasm, because they lack a cell nucleus.
Its cell membrane is responsible for delimiting the organism, which also lacks any type of organelle or cell divisions.
Therefore, we can conclude that the structures that are found in eukaryotes, but not prokaryotes are: Golgi body and Cilia and both prokaryotic and eukaryotic cells contain cytosol and cell membrane structures ..
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What kind of mineral ID is this?
please hurry !! thank you :)
Answer:
Cleavage and Fracture
Explanation:
Cleavage is the way a mineral breaks. Many minerals break along flat planes, or cleavages—some in only one direction (like mica), others in two directions (like feldspar), and some in three directions (like calcite) or more (like fluorite). Some minerals, like quartz, have no cleavage. Cleavage is a profound property that results from a mineral's molecular structure, and cleavage is present even when the mineral doesn't form good crystals. Cleavage can also be described as perfect, good or poor.
I will give brainliest!!!!!!!
Protein synthesis can occur on the rough endoplasmic reticulum (ER) but not on the smooth ER.
Which cell structures are attached to the surface of the rough ER that allow it to make proteins?
Choose 1 answer:
A
DNA strands
(Choice B)
B
Vacuoles
(Choice C)
C
Chloroplasts
(Choice D)
D
Ribosomes
Answer:
The answer is b
what is the role of rabbit in food chain ?
Answer:
Rabbits are herbivores
Explanation:
Rabbit are herbivorous and directly depends on the green plants generally grasses for supply of food and energy. It is found at the second position in the foodchain. We can say that the rabbit is primary consumer in food chain. It is also link between the foodchain of grassland and forest.
Answer:
The controller that keeps plant life in check
Explanation:
Rice, wheat, soybeans, and _______ are considered the four angiosperms that are responsible for early agriculture.
Answer:
Corn
Explanation:
I'm not 100% sure so lmk ig I'm right or wrong
Answer:corn
Ethylene
dormant
anther
stigma
fruit
temperature
Wind pollination required a great deal of excess pollen, just so some of it lands, by chance, in the right place. Animal pollination is more selective because animals pick pollen up and carry it directly to where it needs to be. Although there is still a chance that the pollen will be from the wrong plant species, plants can manipulate variations in animal behavior through the structures of their flowers, the time and season of flowering, or the rewards or attractive chemicals they produce to narrow the field of pollinators, and increase the chances of having exactly the right pollen put in exactly the right place.
Explanation:
Accuracy is a measure of how close a value is to its true value. You can control accuracy by choosing the appropriate tool or instrument and using it carefully. How could the students in the following questions improve their accuracy? Tyrrell wanted to measure the growth of tomato plants in response to different types of fertilizer. Which tool would be most accurate?
Answer:Metric ruler
Explanation:
Answer:
1. Metric ruler
2. a pH meter can distinguish smaller differences in pH as compared to a pH strip.
Explanation:
Got those right on edge ;)
What does a targeted digestive capsule mean?
Who was the first person to see cells under the microscope and give them name a Robert Hooke b Theodor Schwann c Anton van Leeuwenhoek d Matthias Schleiden
Answer:
a) Robert Hooke
Explanation:
The cell was first discovered by Robert Hooke in 1665, which can be found to be described in his book Micrographia. In this book, he gave 60 'observations' in detail of various objects under a coarse, compound microscope.
The first person to observe the cell under the microscope is Robert Hooke, who is present in Option a. Robert Hooke is the person who first observed cork cells under the microscope and gave them a name. Option a is correct
What is a cell?In the early stages of the earth, cells were not as developed as those of today's eukaryotes; they had RNA as genetic material, and later by evolution, today's eukaryotic cells developed. Those RNA-containing cells were extremely susceptible to mutation, whereas today's DNA-containing cells are not.
The eukaryotic cell contains numerous organelles that perform various functions, such as the lysosome, which degrades pathogens, the chloroplast of plants, which perform photosynthetic reactions, the nucleus of eukaryotic cells, which conserves DNA, and the mitochondria, which generate energy through cellular activities.
Hence, the first person to observe the cell under the microscope is Robert Hooke and gave them a name, who is present in Option a.
Learn more about the cell here.
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Plsss helppp plllsss helppp
Answer:
A
Explanation:
A solution with a pH lower that 7.0 is acidic, so that narrows the answers down to a and d. OH- is a base and H+ is acidic, so the answer is A
Answer:
I cant really read it, its kinda blurry.
Explanation:
Which of the following could be a sequence in the carbon cycle?
Answer:
plants take in carbon dioxide and produce glucose --> animals consume plants --> animals break down glucose and release carbon dioxide
Explanation:
The carbon cycle is the sequence through which carbon is cycled through ecosystems. The carbon cycle usually occurs in the following order:
First, plants take in carbon dioxide and convert it to glucose.
Then, animals consume plants and break down glucose through the process of respiration.
Finally, this process releases carbon dioxide back into the atmosphere, and the cycle continues.
Why is it beneficial for the earth to have both autotrophic and hypertrophic?
why did europeans want to conquer the new world ?
Answer:
Europeans wanted to explore the world so that they could gain wealth. European rulers fought many wars and they were very expensive so they needed to find gold, silver and precious stones to pay for them.
Explanation:
If a squirrel climbs a tree at 16m/s how many meters will it travel every hour ? ____ m/hr
Answer:
57600
Explanation:
16x60x60
Brainiest please :D
The distance travelled per hour by the squirrel as it climbs a tree at 16m/s is : 57600m/hr
Determine the distance travelled every hourGiven data :
velocity = 16m/s
To determine the distance travelled per hour
16 m * 60secs * 60 minutes
= 16 * 60 * 60
= 57600 m
Hence we can conclude that the The distance travelled per hour by the squirrel as it climbs a tree at 16m/s is : 57600m
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Im crying because im so in a hurry help me fastas you can in this science question.
Phosphorus is mainly stored in the
Answer:
Phosphorus is mainly stored in the soil and rocks in the form of phosphate.
Explanation:
i hope this helps
3. Write the complimentary sequence of DNA for the following strand:
5'-AATTAGGAGCCCAGCTTTGCCGA-3'
Are fungi Producers or Consumers?
Answer:
Bacteria and fungi are actually decomposers. They eat decaying matter - dead plants and animals and in the process they break them down and decompose them.
I will give brainliest!!!
You're looking through a microscope at a eukaryotic cell and notice that its genetic material (DNA) is openly floating around the cytosol.
What could be a possible cause for what you're seeing through the microscope?
Choose 1 answer:
(Choice A)
A
The lysosome is damaged.
(Choice B)
B
The nucleus is damaged.
(Choice C)
C
The vacuole is damaged.
(Choice D)
D
There is no cause; genetic material should be floating around the cell in this manner.
Answer:
B. The nucleus is damaged.
Explanation:
Eukaryotic cells contain a membrane-bound nucleus and numerous membrane-enclosed organelles. DNA is present in the nucleus of the cell. If the nuclear membrane is ruptured/damaged then the nucleoplasm along with the DNA will openly float around the cytosol.
Answer: The nucleus is damaged.
Explanation: The nucleus is supposed to keep genetic material (DNA) housed within its membrane-bound structure, but in this cell, the genetic material is openly floating around the cell's cytosol. Have a nice day :)
NEED HELP ASAP!!!!
In trying to prove continental drift, Alfred Wegener used evidence from long ago to show that in the distant past, similar animal species lived in places that are ______today. For example, fossils of the________ were found in India, Africa, and Antarctica.
Wegener used Gondwana glaciation evidence, lithological and structural evidence, plates fitting together, and paleontological evidence to prove his theory. 1) separated 2) Lystrosaurus.
What evidence used Wegener to prove his theory?Since Wegener’s theory about continental drift was seriously criticized, he used a list of 10 pieces of evidence proposed by the geologist Du Toit that supported his theory.
The list includes Gondwana glaciation evidence, lithological and structural evidence, plates fitting together, and paleontological evidence.
Among the paleontological evidence, plant and animal fossils from the same species were found in currently separated continents. This distribution suggests the existence of a big unique supercontinent where these species used to inhabit.
For instance,
Glossopteris (fern) impressions are widely distributed in determined areas of Africa, South America, India, and Australia. Terrestrial vertebrate fossils also support the theory. The presence of Triassic tetrapods in all continents suggests terrestrial corridors between landmasses.⇒ Lystrosaurus ⇒ Triassic reptile ⇒ Found in Africa, India, and Antarctica
⇒ Mesosaurus ⇒ Triassic reptile ⇒ Found in South America and Africa
⇒ Cygnonathus ⇒ Triassic reptile ⇒ Found in South America and Africa
Finding these fossils on current different continents suggests that these landmasses were once together, and these species used to live in the same region.
With time, continents diverged and got separated by the ocean. The region where these species used to live got divided and fossils got separated.
In trying to prove continental drift, Alfred Wegener used evidence from long ago to show that in the distant past, similar animal species lived in places that are _separated_today. For example, fossils of the_Lystrosaurus_ were found in India, Africa, and Antarctica.
1) Separated
2) Lystrosaurus
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Kayla’s family has a history of high blood pressure. High blood pressure can lead to serious health problems such as heart disease. Which statement best explains why Kayla can avoid getting heart disease?
A. Genotypes that are related to high blood pressure are not inherited.
B. Phenotypes that are related to high blood pressure are not inherited.
C. The genotype of high blood pressure can be changed.
D. The phenotype of high blood pressure can be change.
This is a timeline depicting the development of atomic ___________. What word should be used to fill in the blank? Support your choice with evidence. A) Law. At each interval on the timeline, scientists described the patterns they saw in both atomic and subatomic structure. Eliminate B) Law. Scientists used observation, experimentation, and mathematical models to explain atomic stricter and the behavior of subatomic particles. C) Hypothesis. Scientists conducted experiments at each interval. They made educated guesses regarding atomic structure and then experimented to support or rejected the hypotheses. D) Theory. At each interval on the timeline, scientists made observations and conducted experiments to explain how atoms and/or subatomic particles behaved in order to determine atomic structure.
Answer:
Subatomic particle, also called elementary particle, any of various self-contained units of matter or energy that are the fundamental constituents of all matter. Subatomic particles include electrons, the negatively charged, almost massless particles that nevertheless account for most of the size of the atom, and they include the heavier building blocks of the small but very dense nucleus of the atom, the positively charged protons and the electrically neutral neutrons. But these basic atomic components are by no means the only known subatomic particles. Protons and neutrons, for instance, are themselves made up of elementary particles called quarks, and the electron is only one member of a class of elementary
Explanation:
because it is
Theory. At each interval on the timeline, scientists made observations and conducted experiments to explain how atoms and/or subatomic particles behaved in order to determine atomic structure. Let's take one example: Rutherford's gold foil experiment. Based on observing the behavior of alpha particles directed at a gold foil screen, Rutherford determined that an atom consisted of mostly empty space, with all of its positive charge concentrated in its center in a very tiny volume, surrounded by a cloud of electrons. Yet, further experimentation eventually lead to another model and another theory of atomic structure.
SCIENCE- help me please I have to turn this in tonight PLEASE.............
Answer:
Yes,if it has a large mass it will have a large weight Awnser (2)
Plz help I will mark you brainlist plz
Answer:
ISOTOPES
the same number of protons
but difference numbers of neutrons
IONS
because they have lost or gained one or more electrons
Answer:
atoms of the same element have same proton number but different nucleon number I hope this help u if u want more ask me
1. What makes water so unique?
Answer:
It is the reason the sky is blue
Explanation:
Describe a non-biological hierarchy that exists in everyday life and how it relates to a biological system.
Answer:
A non-biological hierarchy could be the way the military is organized, with the soldiers at the very bottom and the big commanders on top. (I don't know the specific names for each of them) This relates to a biological heirarchy since the smaller, sadly less important things are at the bottom, like atoms and soldiers, and each group of soldiers makes a regiment (which would be a molecule), then a battalion (which would be a cell), then so on. (I dont know the order of the groups but you can look it up)
organisms that have many characteristics in common are grouped into a _______?
Answer:
The are grouped in species...
Which of the following is a function of proteins? (AKS 1a)
O A.
A. long term energy storage
O
B. help with slowing down chemical reactions
O
C. build tissues such as bone and muscle
O
D. raise activation energy and lower reaction rate
Answer:
ans is A long term energy
storage
A student wants to create a liquid volcano. The student observes bubbles in the soft drink prior to opening it. The student first proceeds to open the soft drink bottle and place it on the floor. Next the student drops candy tablets into the drink using a rolled piece of paper, so that the tablets are able to fall into the drink continuously. The student notices a very powerful reaction as the drink fizzes and starts to bubble. In this scenario, what would be the catalyst ?
Answer: the candy tablets being added to the drink
Explanation: i’m on the test right now and that’s what seems more logical
Answer:
A student wants to create a liquid volcano. The student observes bubbles in the soft drink prior to opening it. The student first proceeds to open the soft drink bottle and place it on the floor. Next the student drops candy tablets into the drink using a rolled piece of paper, so that the tablets are able to fall into the drink continuously. The student notices a very powerful reaction as the drink fizzes and starts to bubble. In this scenario, what would be the catalyst ?
A: The candy tablets being added to the drink
what is a scientific question
A question that is based on observations and that is testable
Explanation:
dictionary
Answer: a question that is based on observations and that is testable
Explanation: Hope this helps :)
Which organelles are found in plant cells but not in animal cells?
Answer:
Organelles that are found in plant cells, and not in animal cells, are chloroplasts, a call wall, specialized plastids, and a large central vacuole.
Hope you found this helpful <3
Answer:
cell wall and chloroplast
Explanation: hope this helps:)
