TASK DEFINITION: Write a correct answer to the given question based on its associated fact. Make sure that your answer is contained in the associated fact. Don't be creative and introduce any new word that is not mentioned in the associated fact! Remember that the associated fact has been rearranged to form the question. So, the correct answer words must lie within the associated fact. The correct answer can be a word, phrase, or even a sentence.
PROBLEM: Fact: Thyroxine increase the rate of metabolism in cells throughout the body. 
Question: What increases the rate of metabolism in cells throughout the body?

SOLUTION: Thyroxine.

PROBLEM: Fact: Energy enters ecosystems from the sun. 
Question: The sun contributes what to ecosystems?

SOLUTION: energy.

PROBLEM: Fact: Macroevolution occurs over geologic time at the level of genus or above. 
Question: What is considered to be part of macroevolution?

SOLUTION:
genus.