Question

gross primary production *
1 point
is the energy produced during photosynthesis.
is the energy that can be passed onto the apex predators.
one of the answers are correct
the energy the plants use up during cellular respiration.

Explanation:

Gross primary production is the total amount of energy produced by plants during photosynthesis. Energy passed to apex - predators is a part of net production after respiration losses. The energy plants use during cellular respiration is subtracted from gross production to get net production.

Answer:

is the energy produced during photosynthesis.