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son4ous [18]
3 years ago
8

For biological evolution to occur by way of natural selection, the trait being selected for need NOT:

Biology
1 answer:
grandymaker [24]3 years ago
4 0
The answer is c. Natural selection is when inheritable traits that they need to survive is passed down to the next generation. Biological revolution changes the environment so the organism's offspring has to change with it through genetic variations. If you increase it's life span than you may not have genetic variation over a period of time.
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You have a plant with yellow seeds, which express a dominant phenotype. How would you determine the plant's genotype? Conduct a
Archy [21]
The answer is <span>Conduct a test cross with a purebred recessive plant. 

</span>

Test cross is the cross between an organism with unknown dominant genotype and an organism with known recessive genotype.

<span>Since dominant trait results from a dominant allele, the test cross can determine if an unknown genotype is heterozygous and homozygous dominant. </span>

If A is dominant allele, and a is recessive allele, then AA is dominant homozygote, Aa is a heterozygote, and aa is recessive homozygote.

<span>According to the Punnett square, if all of the offspring are heterozygote (Aa), then unknown genotype is dominant homozygous (AA). If half of the offspring are the heterozygote, and the other half are recessive homozygote, then the unknown genotype is heterozygote (Aa).</span>

6 0
3 years ago
An organ represents a higher level of structure than the tissue composing it and performs functions that the tissues cannot perf
Natalija [7]

Answer: This is an example of organizational heirarchy.

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4 0
3 years ago
Why is it impossible for offspring to show recessive trait if one parent is homozygous for the dominant trait?
Luden [163]

If you make a punnet square out of this, there is no possibility to have a recessive trait because neither parents have it plus dominant is always going to overrule recessive traits.

5 0
3 years ago
Why is water necessary to your body
dusya [7]

Answer:

it's necessary because your body uses water in all its cells organs and tissue. water helps you to keep moving and functioning.

7 0
3 years ago
The seven individuals who run the Fed are called the
Margarita [4]
The seven individuals who run the Fed are called the <span>board of governors.(D)

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