Between which 2 steps in an energy pyramid is predation first seen?

a.1-2
b.2-3
c.3-4
d. none of the above

B. 2-3

Bcoz

On 1st - autotrophs

On 2nd- primary consumers (herbivores)

On 3rd - secondary consumers (predators on primary consumers)

Hope this helps you frnd

it enhances antibody production by t cells of the adaptive immune system.

hope i'm right

explanation:

i believe the answer is a or 1