Answer:
To repel
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.
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Most hemato<span>poietic stem cells are found in the bone marrow,but some cells,peripheral blood cells are found in the bloodstream.
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