I’m taking a practice test that allows me to get my full grade up and don’t understand which one goes in which

Agene with the original sequence of atgtt—tact underwent substitution mutation to form atatt—tact after a few generations. tact is a part of a muscle protein encoding region, and atgtt codes for a digestive enzyme. what will be the effect of this mutation? a. the production of muscle protein will be affected. b. the production of digestive enzymes will be affected. c. the production of both the protein and the enzyme will be affected. d. the production of neither the protein nor the enzyme will be affected.

Why is excretion necessary to maintain homeostasis?

How can you approximate the number of calories required to keep you in energy balance?