I believe your answer would be Echinoderms and Chordates. I hope this helps!
This hormone is known to regulate blood pressure.
The first step I believe is B. Enzymes break down the protective layer of the egg cell.
Answer:
D.Polygenenic
Explanation:
A polygenic trait is a phenotype that is influenced by more than one gene. Examples are height or skin color.
Answer:
a is transcription and b is tranlation
Explanation: