I believe the answer is it can form polymers like carbs, lipids, proteins, and nucleic acids.
Answer:
A. test the composite drug in a trial run
Explanation:
Fetuses who were more active during the last trimester of the pregnancy became 2 year olds who were less fearful when interacting with an unfamiliar adult in a laboratory, and those with one year knew how to handle frustration better than those who were less active during the last trimester.
