What specific protein can be made from amino acids?

In this case, the statement that people who exercise for an hour may have lower cholesterol levels is .

How does the molecular clock work? a. it analyzes the brain functionality of two different species.b. it examines and compares the physical characteristics of two different species.c. it illustrates relationships between two different species.d. it compares the number of mutations that exist in the dna of two different species.

Which blood cell spend most of their time in the lymphatic system?