Intermolecular hydrogen bonds
The only logical answer would be C. Unicellular, but the answers seem to be all wrong.
Answer:
B. The population must be very large.
Explanation:
<h3>Playing the role as ” procoter of the help beads ”, the sea otther is able to mantian a balance of the ecosystem , naturally by conusiming sea urchins ...</h3>
<h2>I hope it is helpful for you....</h2>