What changes occur at the molecular level when ice cream melts and forms a liquid?
a.
the motion of the molecules remains the same.
b.
the motion of the molecules increases.

c.
the motion of the molecules decreases.
od. the motion of the molecules stops completely.
e.
the motion of the molecules shows a fixed pattern.

Can a trait be both polygenic and have multiple alleles? explain why or why not.

Imagine a self-reactive t cell that has not undergone clonal deletion in the thymus (that is to say, it has escaped central tolerance). if it encounters self antigen in the absence of an infection or inflammation, what will happen to this self-reactive t cell? (select two answers) (a) the t cell undergoes clonal expansion. (b) the t cell gains effector functions. (c) the t cell undergoes apoptosis. (d) the t cell becomes activated. (e) the t cell becomes anergic.

According to these anatomical structures which two animals are probably most closely related