When autotrophs produce more organic matter than they use in respiration tehre is anet increase in organic matter. That is called A. Anaerobic repiration.
B. Diffussion.
C. Primary production.
D. Osmoregulation.

Primary Production

Explanation:

A net increase in organic matter seen when autotrophs produce more organic matter than they use for respiration, The hint was autotroph, an autotroph is always a primary producer, so there for it would be primary production.

answer: oof wait

explanation:

feral cats are estimated to eat tens of millions of native animals each night in australia