Answer:
Option (B).
Explanation:
The relationship between closely related species can be studied by their evolutionary tree. The two species are closely related if they have similar characteristics and nucleotide sequence.
Species A has the DNA sequence TAGCTTAGGGACGG whereas species B has the DNA sequence TACCTTAGGGACGG. These two species have identical nucleotide sequence with minor differences. Hence, these two species are closely related with each other.
Thus, the correct answer is option (B).
<span>Scientists use models of natural systems because these systems are often too large, too small, or too complex to study directly</span>
If an animal did not consume lysine in its diet, you might
expect that the animal to have a growth delay and brittle bones.
<span>- </span>Lysine
is considered as a building block for the synthesis of all proteins. Proteins
are essential for normal growth and for body tissue repair. Therefore lysine
deficiency can result in stunted
growth and a weak muscular-skeletal structure growth and a weak muscular-skeletal structure.
<span>-
</span>Lysine helps in calcium absorption. Calcium is
important for the developing and maintaining healthy skeletal and nervous
system. Therefore, lysine deficiency can result in brittle bones and nervous
system problems.