Compare the vagina and the anus. How does the fact that the vagina has a mucous membrane lining and the anus does not affect these structures as sexual organs?

Explanation:

The mucous membrane lining provides lubrication which allows the vagina to act as a sexual organ. Without this membrane lining, the skin would get dry which would create friction when involved in intercourse. This friction can cause damage such as membrane tearing and even bleeding or burns. The anus does not have the mucous membrane lining like the vagina does which affects it from being an effective sexual organ like the vagina.

b - the respond is innate and varies over time.

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the areas around the equator