Q1. A young animal has never had much energy. He is brought to a veterinarian for help and is sent to the animal hospital for some tests. There they discover his mitochondria can use only fatty acids and amino acids for respiration, and his cells produce more lactate than normal. Of the following, which is the best description of his condition?

Q2. Imagine you are conducting fieldwork and discover two groups of mice living on opposite sides of a river. 1) Assume you will not disturb the mice; design a study to determine whether these two groups belong to the same species. 2) If you can bring them to the lab, how might that affect your experimental design?