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Alika [10]
3 years ago
15

Plz help I can’t get the answer for prompt 1. The letters “T” & “A” are in bold font. I’ll give brainliest and Thanks!

Biology
1 answer:
Leto [7]3 years ago
4 0

Answer:

I think the cauae of substitution they involve swapping of one nucleotide for another during DNA repliction.For example,during repliction,a thymine nucleotide might be inserted in placed of a guanine nucleotide

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From his observations of organisms in the Galapagos islands, Darwin reasoned that _____. See Concept 22.2 (Page) View Available
Rudik [331]

Darwin reasoned that natural selection organisms had adapted to new environments, giving rise to new species. It is a principle of speciation.

<h3>Speciation, natural selection and environment</h3>

Different environmental pressures (e.g. the type of food) lead to different evolutionary pathways in genetically related organisms.

The organisms subject to different environments evolve as a consequence of natural selection in order to adapt (adjust) to their corresponding environments.

In consequence, this process may eventually lead to speciation due to the emergence of reproductive isolation barriers.

Learn more about natural selection here:

brainly.com/question/23929271

5 0
3 years ago
Is a Jellyfish free-swimming for its whole life? Explain why or why not.
Keith_Richards [23]

Answer:

Jellyfish start off their life in the polyp stage. The stage we are used to seeing (e.g. the jellyfish looking stage) is called the medusa stage.

Explanation:

Look at this image and see how a jellyfish actually starts out as not free-swimming.

4 0
3 years ago
The ABO blood groups in humans are expressed as the I A , I B , and i alleles. The I A allele encodes the A blood group antigen,
Fynjy0 [20]

Answer:

d. multiple alleles and codominance

Explanation:

ABO blood group is controlled by three alleles instead of the usual two. Hence, it is an example of multiple alleles. These three alleles are IA, IB and i. IAIA genotype leads to production of A antigen hence A blood group. IBIB genotype leads to production of B antigen hence B blood group. When they are present together (IAIB) both A and B antigens are produced resulting in AB blood group. Hence ABO blood group is also an example of codominance.

Both IA and IB are dominant over the i allele. So IAi and IBi will produce A and B blood group respectively. ii genotype leads to O genotype.

8 0
3 years ago
A sunflower and an amoeba are both living organisms. How is the structure of a sunflower different from the structure of and amo
galben [10]
<span>there are several differences, here are some:
kingdoms: sunflower = plant; amoeba = ProtistaCell
membranes: sunflower = cell wall; amoeba = semipermeable membrane only
organelles: sunflower = cholorplasts; amoeba = pseudopod 
</span><span>Cell organization: sunflower = differentiated multicellular: amoeba = single cell 
<span>Habitat: sunflower = confined to land areas; amoeba = confined to water
hope this helps</span></span>
5 0
3 years ago
Read 2 more answers
The autonomic nervous system controls all __________ responses of the body.
Mumz [18]

A. unconscious

It's A because it controls the involuntary actions like our heart beat or breathing. The actions we aren't consistently remembering to do.  

4 0
3 years ago
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