Can someone help me with this please it is for Science

Which kind of aquatic ecosystem does the photograph most likely show? a. marsh b. swamp c. lake d. river

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.

The basic kind of life cycle found in the simplest animals is: haplontic or diplontic