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Alex787 [66]
3 years ago
15

Study the picture of the birds. These birds are all types of birds found in the islands of Hawaii and they all evolved from a co

mmon ancestor. How did these birds come to look different?
A) Some offspring were born with slight genetic differences from parents that proved to be an advantage in their current environment.
B) Adult birds faced with a challenge grew different beaks and other traits to fit their environment.
C) Scientists most likely altered their DNA to help them survive.
D) Birds passed on acquired traits to offspring.
Biology
2 answers:
trapecia [35]3 years ago
8 0

Answer: I'm no biology geek, but i believe the answer is D

Explanation:

A: i believe no because it says <u>SOME</u> offspring were born with sight different from parents genetically but in reality all organisms are genetically different due to sexual reproduction

B: no because the traits will have to be passed on over a long period of time and this question does not depict that

C: it's a possibility, but they are talking about evolution and that is artificial selection

D: I was deciding this or a for the right answer, but I thought of what the question was asking and the way that evolution works is desired traits continue, and that those desired traits are passed on generation from generation, which helps the species survive

so i hope this helps :)

docker41 [41]3 years ago
6 0
I believe this answer is A. answer D sounds very similar,but A goes into detail and gives an explanation. This explains survival of the fittest and is the reason of why organisms evolve.
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Answer:

d. all of the offspring have medium length fur.

Explanation:

Incomplete dominance is a phenomenon in which offspring produce a trait that is intermediate between the two forms of a certain trait.

For example: In four o clock plant, some plants produce red flowers while some plants produce white flowers. When plants with red flowers are crossed with plants with white flowers, all the offspring have pink flowers.

Why is that so?

This is because no allele is completely dominant over the other and therefore both contribute their individual effect by producing intermediate phenotype.

Example in question:

Cross between a rabbit with short fur (SS) and a rabbit with long fur (LL)

P1:                                SS        x        LL

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Offspring                        SL :SL

SL: Medium length fur

Therefore this is a case of incomplete dominance.

Hope it help!

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