In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

[Q]: Question: What type of creature is a scallop? Answer: mollusk
[A]: A scallop is a(n) mollusk.


[Q]: Question: Early in the development of a human fetus, the skeleton is made entirely of what? Answer: cartilage
[A]: Early in the development of a human fetus, the skeleton is made entirely of cartilage.


[Q]: Question: Does blood flow increase or decrease when blood vessels constrict? Answer: decrease
[A]:
Blood flow decrease when blood vessels constrict.