Problem: 
Q: You are presented with the quiz "hromosomes contain a recipe for the manufacture of what?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "chromosomes contain genes, which code for proteins" and "dNA is a code, or recipe, for the manufacture of proteins".   So, what's the best answer to the question?
Answer: proteins
Problem: 
Q: You are presented with the quiz "What animal lacks a backbone?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "invertebrates are animals that lack a vertebral column, or backbone" and "insects are the most common invertebrates".   So, what's the best answer to the question?
Answer: Insects
Problem: 
Q: You are presented with the quiz "what does evaporation lower?"   But you don't know the answer, so you turn to your teacher to ask for hints. He says that "lack of moisture in the air causes low amounts of rainfall" and "rainfall contributes to, and evaporation removes, moisture".   So, what's the best answer to the question?
Answer:
moisture