Which one of these is NOT a characteristic of an animal? A obtains energy by consuming other organismis

B. is multicellular with cells that have cell walls

C. takes in oxygen and releases carbon dioxide

D. is able to grow new cells to replace damaged cells

Which of the following is the most likely outcome of global warming

Which zone within the open-ocean zone is home to the most organisms? deep zone surface zone intertidal zone transition zone

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.