Modern fishing practices threaten biodiversity mainly through the
a. physical destruction of marine habitats.
b. removal of community food supplies.
c. accidental capture of unwanted species.
d. chemical poisoning of the water.
c. accidental capture of unwanted species.

Modern fishing practices threaten biodiversity mainly through the accidental capture of unwanted species. This is because the business men or fishermen needs to reach a quota in selling, therefore, there are fishes that are not mean to be taken but are taken.

the cell cycle is the final answer! : )

i might be wrong but i think its a. let me know if i’m right and have a good rest of your day!