Chemokines act as chemoattractants. They lead <span>to the migration of immune cells to an infection site so they can target and destroy invading bodies such as microbes. Hope this helps.</span>
Answer:
B is correct
Explanation:
This is because in DNA, purines (A and G), pair with pyrimidines (C and T), and more specifically, adenine pairs with thymine and cytosine pairs with guanine. Per this base pairing, B should be the right answer.
Answer:
they are all lined up.
Explanation:
the moon blocks the sun which is in front of the earth