It wont let me type it in smh

Astudent drew the following flowchart to show the movement of nutrients. soil → roots → plants →? where does nitrogen go next? a. directly into nearby animals as nutrition b. directly into aquifers through condensation c. directly into the air through evaporation d. directly into nearby plants during fixation

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

Variety of living organisms; includes genetic, species, and ecological types.