Answer:
b
Explanation:
It is a fossil of sea shells
Maintain homeostasis - eg. blood sugar control by insulin and glucagon.<span>
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Answer:
White shark bites, parasites, food availability, habitat degradation are among some of the contributing factors threatening the recovery of the species. The greatest threat to a sea otter is the oil spills.
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Extra - Fun fact - Sea otters play a vital role in the health and stability of the nearshore marine ecosystem as a keystone species.
I think the answer is Endospore. I'm sorry if I'm wrong...