Describe the four sources of evidence for evolution upon which Darwin based his ideas in common descent.
Answer:
- Fossil record
- Geography
- Embryology
- Comparative anatomy
Explanation:
The four types of evidence for evolution upon which Darwin based his ideas were:
1-The geographic distribution of related species. The theory of evolution states that species evolve in geographic areas that were colonized by their ancestors.
2-The fossil record shows successions of organisms through time
3-Embryology: animal embryos in related species are very similar in the early stages of development but differentiate as they grow, thereby suggesting these species evolved from a common ancestor.
4-Comparative anatomy demonstrates physical and structural similarities between species. The species share anatomical similarities because they descend from a common ancestor (i.e., presence of homologies).
Evolution by Darwin was based on the development of the species from the ancestors. The evidence for evolution are fossils, geography, anatomy, and embryology.
What are the pieces of evidence of evolution?The Darwin theory was based on the evolution of the species from their ancestors. The time period has resulted in the change in the features that are based on natural selection.
The evidence for evolution proposed by Darwin is fossil records, comparative anatomy between the species, geographical changes in the species relation, and the embryonic similarities with the evolution.
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cuales son las formas de las células
Respuesta:
Por lo general, las células son redondas, alargadas o esféricas. También hay algunas celdas que son largas y puntiagudas en ambos extremos. Estas células presentan forma de huso. En algunos casos, las celdas son muy largas.
Will give brainlest 100 points
Answer:
the answer is B gamma particle
Answer:B
..............................
Plant roots have extensions called root hairs. These root hairs are important in the homeostasis of the plan
Answer: root hairs increase the surface area of the roots for nutrient and water absorption
Explanation:
someone help me please, I’ll mark brainlist or whatever it’s called quick
The answer is
Limit the overuse and misuse of antibiotics in medicine and agriculture.
So, that the bacteria doesn't develop immunity against antibiotics.
Both animals and plants must maintain homeostasis in order to stay alive. Plants excrete
water and oxygen through the stomata (tiny holes in the leaves) as waste products of
photosynthesis, which system in the human body would this be comparable to?
a. Nervous system
b. Circulatory system
c. Reproductive system
d. Excretory system
Answer:B
Explanation:
If a plant were to have a problem with the Central Vacuoles in its cells leading to the vacuoles not functioning properly, what would the plant probably having trouble doing?
Answer:
it will have trouble while doing photosynthesis process,and it can't exchange gases
How is Anaphase I in meiosis different than in mitosis
A. Chromosomes are not pulled to the poles.
B. Nothing, they are the same
C. Whole chromosomes are moved to the poles
D. The chromosomes are split at the centromeres
Answer: C
Explanation: In anaphase 1 in meiosis, homologous pairs are separated but sister chromatids stay joined together. In anaphase 1 of mitosis the sister chromatids do separate.
Answer:
C is your answer
Explanation:
which organ is central to the body's metabolism of nutrients??
a-) the stomach
b) the kidneys
C) the liver
d) the small intestine
Answer:
The small intestine
Explanation:
The muscles of the small intestine mix food with digestive juices from the pancreas, liver, and intestine and push the mixture forward to continue the digestion process. The walls of the small intestine absorb water and digested nutrients into the bloodstream.
In a collosion between two billard balls, the total amount of energy before the collsion is equal to the total energy after the collsion.
true or false?
Is tick an insect? If yes, why? If no, why?
Answer: Kind of
Explanation: Ticks aren't actually insects, they are arachnids – more closely related to spiders.
18. Brayden is trying to figure out how petal shape is determined in two different roses. In the pink
rose, the copies of the gene are the same as each other. In the yellow rose, the copies of the gene are
different from each other. How does this affect how many types of proteins there are in each petal
cell?
a
The pink rose has one type of protein for the petal shape feature. The yellow rose has two
types of protein for the petal shape feature.
b
The pink rose has one type of protein for the petal shape feature. The yellow rose has one
type of protein for the petal shape feature.
с
The pink rose has two types of protein for the petal shape feature. The yellow rose has two
types of protein for the petal shape feature.
d
It is impossible to say anything about proteins from the given information.
Answer:
c
Explanation:
they would have diffrent gene versions and protines to get their colors
In the pink rose, the copies of the gene are the same as each other, while the yellow rose has different copies, so it is concluded that the pink rose has one type of protein for the petal shape feature, while the yellow rose has two types of protein for the petal shape feature, as present in Option a.
What is the petal shape dependent on?Generally, the characters are dependent on the genes that are present in the DNA; either the gene variants, such as the alleles, show pure dominance or they combine to produce the effect, and here the pink rose petal has the same alleles so they will express the single protein while the yellow has different alleles so it has the chance of the two proteins.
Hence, in the pink rose, the copies of the gene are the same as each other, while the yellow rose has different copies, so it is concluded that the pink rose has one type of protein for the petal shape feature, while the yellow rose has two types of protein for the petal shape feature, as present in Option a.
Learn more about the petal shape here.
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hii! i’ll give brainliest pls help
Answer:
landslide
Explanation:
Answer:
I think it's landslide
hope this helps
have a good day :)
Explanation:
5
Select the correct answer.
A nurse aide is caring for a client who has a viral infection. The client is the host for the pathogen (virus). What should the nurse alde do to break
this link in the chain of infection?
O A Quarantine the client with others who are hosts for the pathogen.
ОВ.
Glve the client the prescribed medication to eliminate the virus.
OC. Encourage the client to wear gloves before touching any surface.
OD Instruct the client to perform hand hygiene before and after meals.
Reset
Next
Answer:
may be no.c is the answer am I right
Sea turtles, mosquitoes, and frogs all show a
c I think it is c have a good dsy
Which impact of global warming has the greatest effect on drinking water supplies?
A.melting mountain glaciers
B.rising sea level
C.higher acid levels in the ocean
D.early spring blooming of flowers
Global warming is mainly caused by an increase in the temperature of atmosphere. The main impact of global warming has the greatest effect on drinking water supplies is melting mountain glaciers.
Which gas is responsible for global warming?The gases that leads to greenhouse effect include carbon dioxide, methane, nitrous oxide, and water vapor, and fluorinated gases.
These gases increases the temperature of the atmosphere and results in global warming.
This leads to the melting of mountain glaciers which makes a great reduction in the availability of drinking water.
Thus, the correct option is A.
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Answer:
A
Explanation:
trust
Question 9 of 25
Which of these statements describes an interaction between a living factor
and a nonliving factor in an ecosystem?
A. A wild turkey displays his feathers to a mate.
B. An earthworm breaks down leaf material.
C. A raven hunts a mouse for food.
D. Mosses in a bog absorb and hold water.
SUBMIT
Answer:
b
Explanation:
the worm is living while the leaf is not
Answer:
d
Explanation:
a living thing is interacting with a non living thing by using one of its five senses
What do I put in the squares?
Explanation:
I wrote out an explanation but it said "Rude! We don't use such words here. Please change it". I honestly don't know what word i couldn't use but I just could not post it. I tried changing any words that may have caused it but it did not fix the issue. So here are the answers only.
Cells can die or become damaged. Which part of cell theory is used to replace dead or damaged cells?
A. Cells divide to make new cells.
B. Cells multiply by cellular respiration
C. Cells take in new cells through endocytosis. D. Cells grow larger to make up for the lost cells.
Answer:
A
Explanation:
cells divide by mitosis hope this helps
What are the two methods that are used to date fossils? Which is more accurate? l
Answer:
relative dating and radiometric dating. Radiometric dating is the most accurate
Communication between cells is affected if there is an issue with which
two systems
Explanation:
As I think option B is the correct one.
Which resources are renewable and which are non renewable?
a
A renewable resource is a natural resource that is replaceable through a cycle in nature or sustainable practice. These resources can be used over and over or can be replaced in one lifetime (about 100 years or less).
b
A nonrenewable resource is a natural resource that is in limited supply. These resources cannot be readily replaced in one lifetime and may run out if used faster than they can be replenished.
c
sunlight, rocks, water, glass metals, and rocks.
d
All of the above.
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What is the reason water has so many special properties?
Answer: Water has many unusual properties
Explanation: Water has many unusual properties because of its polar covalent bonds. Oxygen has a larger electronegativity than hydrogen, so the electron pairs are pulled in closer to the oxygen atom, giving it a partial negative charge. Subsequently, both of the hydrogen atoms take on a partial positive charge.
The diagram below shows the cell cycle. Which type of cell division is indicated by the processes happening in C and D?
Answer:
This process is mitosis
maybe this will help
It might not be exactly what you are looking for but this is what I have done
The type of cell division indicated by the processes happening in C and D would be mitosis.
Mitosis is the division of vegetative cells and results in the production of 2 genetically identical daughter cells.
During mitosis, sister chromatids separate into opposite poles and each group of chromatids forms the genetic materials for daughter cells that will become independent when the parent cell undergoes cytokinesis - the division of the cytoplasm.
C in the image represents the metaphase of mitosis where chromosomes align at the center of the cell and get engaged by spindle fibers. D represents the anaphase where sister chromatids have been pulled apart and begin to migrate to opposite poles through the contraction of spindle fibers.
After completing their migration to the poles, the chromatids decondense, and a nuclear envelope appears around each of them. The cytoplasm then divides into two for new independent daughter cells to be formed.
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I AM GIVING OUT BRAINILEST
Answer:
blue
Explanation:
bobcats eat rabbits
Question 2 (1 point)
The "fish with legs" fossil is of great importance to the study of evolution of land-
dwelling animals because:
A) It suggests that fish moved onto dry land and then evolved legs and hands later.
B) It suggests that land-dwelling animals did not evolve from fish.
C) It suggests that fish first evolved legs that allowed them to move out of the
water.
D) It is the missing link between whale evolution and the evolution of terrestrial
mammals.
E) All of the above.
Ecological interactions can be categorized as competition, exploitation, or positive. Describe the types of interactions that fall into these categories, and provide an example of each type of interaction.
Answer:
Competition is an interaction between organisms or species in which both the organisms or species are harmed. Limited supply of at least one resource used by both can be a factor. This example is if two lions get into a fight and they end up hurting each other.
Exploitation competition occurs when individuals interact indirectly as they compete for common resources, like territory, prey or food. An example of this is when people are farming and they are trying to get the best food available but someone else might have already gotten it.
Commensalism is a positive type of ecological interaction between two species in an ecosystem. In commensalism, the association occurs between members of two different species where one species is benefited the other is neither benefited nor harmed. An example of this is tree frogs who use trees as protection.
Explanation:
The National Wildlife Refuge supports _______ wildlife refuges.
a.
150
b.
37
c.
550
d.
227
Please select the best answer from the choices provided
A
B
C
D
Answer:
answer b is the correct of this question
describe how lactobacillus is important in human intestine???
Answer:
This genus of microbes breaks down dietary fibers and phytonutrients (like polyphenols) which have beneficial effects for your health. What's more, Lactobacillus even helps to feed other bacteria in your gut, such as the ones that produce butyrate (which the cells in your gut lining need for energy).
Explanation:
This genus of microbes breaks down dietary fibers and phytonutrients (like polyphenols) which have beneficial effects for your health. What's more, Lactobacillus even helps to feed other bacteria in your gut, such as the ones that produce butyrate (which the cells in your gut lining need for energy).
websites and the little bit i knew helped
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During a normal synaptic transmission, after the neurotransmitters are released from the post synaptic membrane, what happens to the neurotransmitters?
A) They move into the post synaptic neuron.
B They are broken down by enzymes.
C
They return to the pre-synaptic neuron.
D
Both b and c.
Answer:B
Explanation: