some sponges produce toxins that harm other sponges. What is the best explanation for why they do this?

Defense

Explanation:

There are also many biological reasons why sponges are much more toxic than most other marine invertebrates, related to evolutionary advantages of being toxic (the study of chemical ecology). Chemical defence. Since sponges cannot avoid predators by escaping, they may use toxins to repel predators.

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

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