Given a scientific question and its correct answer, generate supporting facts for the answer. This supporting fact can be an explanation for the answer to the given question.

Input: Consider Input: Question: What allows giraffes to reach leaves that other ground animals cannot? Answer: long necks

Output: African Giraffes. Giraffes feed on leaves high in trees. Their long necks allow them to reach leaves that other ground animals cannot.

Input: Consider Input: Question: What is caused by the same virus that causes chicken pox? Answer: shingles

Output: Preston Hunt. Shingles is caused by the same virus that causes chicken pox . CC BY 3.0.

Input: Consider Input: Question: How many layers of phospholipids does the cell membrane contain? Answer: two
Output: The cell membrane consists of two layers of phospholipids. It encloses the cytoplasm and controls what enters and leaves the cell.