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mote1985 [20]
3 years ago
13

During their early stages of development, the embryos of reptiles, birds, and mammals look very similar. this suggests that rept

iles, birds, and mammals:
Biology
2 answers:
expeople1 [14]3 years ago
8 0
They are homologous structure which they share the same ancestor.
irga5000 [103]3 years ago
4 0

Answer:

This suggests that these animals have a common ancestor.

Explanation:

Common ancestor is a species that, through the process of descent with modification, gives rise to new species. The evolutionary relationships of organisms can be represented by phylogenetic trees (or phylogenies), which are branched diagrams in the shape of a tree that show ancestral relationships between species.

Organisms that share a common ancestor are more related to each other. For this reason, when we observe that when reptile embryos, birds and mammals look very similar, they probably share a common ancestor.

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Dna damage can occur as a result of exposure to chemicals or ultraviolet radiation. what happens during nucleotide excision repa
NeTakaya
Dna damage can occur as a result of exposure to chemicals or ultraviolet radiation. This is what happens during nucleotide excision repair of damaged dna. A multienzyme complex crosses the DNA in search of distortions in the double helix, once located, the phosphate skeleton of the affected chain is cut on both sides of the altered region, a helicase eliminates the oligonucleotide resulting from digestion, the "Gap" "is filled with a DNA polymerase and a ligase.
6 0
3 years ago
A letter about the evidence of evolution
GuDViN [60]

Answer:

I am writing this in response to a letter regarding evolution. Evolution is increasingly solid, not shaky. Darwin’s “theory” or explanation was a way of understanding what he had discovered (which did not include genes, chromosomes, DNA or nucleotide bases). Our explanations now include genetics and the commonality of mutation.  

Proofs are solid, not in question by serious scientists. Direct observation is one, which we see in the fact that this year’s flu evolved a little too far from last year’s, so flu shots are less effective this year than we would like them to be.  

Fossils tell the story well: whales with legs, dinosaurs with feathers and Tiktaalik. The latter was found in the Canadian north and is part fish, part amphibian, before there were ever any amphibians. Imperfection is a good proof: think of your useless appendix, the very bad design of your ankles, knees, and back (talk to a chiropractor about that).  You have big toes because they used to be useful thumbs for your grasping feet.

Many other animals and even plants similarly have flaws that show their evolutionary past. Two large human chromosomes reflect the coming together of two chimpanzee chromosomes each.

Hope it helps,

Please mark me as the brainliest

Thank you

5 0
2 years ago
A gene cannot react chemically and form a trait without the proper what
kogti [31]

Answer:

Enzyme

Explanation:

Enzymes are the bio-catalyst that serve to accelerate the metabolic reactions occurring in a living cell.  All the metabolic reactions of organisms are catalyzed by enzymes. Each metabolic reaction is catalyzed by specific enzyme. Absence of that particular enzyme leads to absence of the respective product. Since genes code for protein which regulate the specific trait, absence of enzyme does not allow the expression of that trait.

Example: Absence of enzymes for chlorophyll synthesis would lead to absence of chlorophyll from leaves of the green plants.

6 0
3 years ago
PLS HELPPPPPPPP PLS HELPPPP
Ad libitum [116K]

Answer:

Lara uses more water

Explanation:

because Lara takes longer showers, uses the dishwasher more often, and keeps the water on while brushing her teeth while Mateo takes shorter showers which uses less water. Washing your hands and keeping the water off while brushing will consume less water as well.

5 0
2 years ago
Cells do cell respiration in order to make
Neko [114]

Answer:

Cellular respiration is a set of metabolic reactions and processes that take place in the cells of organisms to convert biochemical energy from nutrients into adenosine triphosphate (ATP), and then release waste products.

Explanation:

8 0
3 years ago
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