The answer to your question is ''ice forming and then melting back into water''
<span>Triglyceride. Triglycerides are organic molecules found in fat cells like the subcutaneous tissues. They are the main constituents of body fat in humans and other animals; they are a type of lipids found in the blood which the body uses for energy in cases of starvation.</span>
D. they reproduce by binary fission, is the answer I think
<span>If they have a nucleus, they are eukaryotic</span>