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.
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Question: Question: What gland secretes a fluid that mixes with sperm to help form semen? Answer: prostate gland

Answer: The prostate gland secretes a fluid that mixes with sperm to help form semen. Semen is a whitish liquid that contains sperm. It passes through the urethra and out of the body.

Question: Question: Like animals, protozoa are heterotrophic and capable of what? Answer: moving

Answer: Like animals, protozoa are heterotrophic and capable of moving.

Question: Question: What kind of reaction is needed to prepare amides? Answer: carboxylic acid reaction

Answer:
Amides are prepared by the reaction of a carboxylic acid with ammonia or an amine.