Gill ridges and a bony tail....
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.
Answer:
They are located in the ribosomes.
Answer:
A) 1000
Most viruses are 1000 times smaller than the average cell
