TASK DEFINITION: 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.
PROBLEM: Question: A fish's stream-lined body that reduces water resistance is an example of what kind of response to an aquatic lifestyle? Answer: adaptation

SOLUTION: Many structures in fish are adaptations for their aquatic lifestyle. For example, fish have a stream-lined body that reduces water resistance while swimming.

PROBLEM: Question: What do sharks use to secrete salt to assist in osmoregulation? Answer: rectal gland

SOLUTION: animals exposed to similar levels of urea. Sharks are cartilaginous fish with a rectal gland to secrete salt and assist in osmoregulation.

PROBLEM: Question: What gems are created by mollusks, such as oysters? Answer: pearls

SOLUTION:
Pearls are highly valued as gemstones. Most gemstones come from the Earth, but pearls come from living things. They are created by mollusks, such as oysters.

