Given a scientific passage and an answer, generate a question for the given answer.

Q: Passage: Sperm are produced in the testes in the process of spermatogenesis. Answer: spermatogensis

A: What process creates sperm?
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Q: Passage: Neutralization reactions between an acid and a base yield a salt and water. In some cases, this results in a completely neutral solution. However, some salts are weakly acidic or basic. How can we tell whether a given salt will act as an acid or base? Looking at the relative strengths of the acid and base that were used to form the salt can give us information on the acid-base properties of the resulting solution. Answer: neutralization

A: What kind of reactions between an acid and a base yield a salt and water?
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Q: Passage: Many animal behaviors are ways that animals act, naturally. They don't have to learn how to behave in these ways. Cats are natural-born hunters. They don't need to learn how to hunt. Spiders spin their complex webs without learning how to do it from other spiders. Birds and wasps know how to build nests without being taught. These behaviors are called innate. Answer: innate

A:
Behaviors that occur naturally and are not learned are called what?
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