instruction:
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.
question:
Question: What is the tubular passageway through which the embryo or fetus leaves the mother's body during birth? Answer: vagina
answer:
The vagina is a tubular passageway through which the embryo or fetus leaves the mother's body during birth. The vagina is also where the male deposits sperm during mating.

question:
Question: Pressure and ________ are directly proportional at a constant volume? Answer: temperature
answer:
Pressure and temperature are directly proportional at a constant volume.

question:
Question: How many fingers do apes have on each hand? Answer: five
answer:
Humans and apes have five fingers they can use to grasp objects. Do you think these are analogous or homologous structures? Explain.