C. Person because the first organism is a producer and tertiary means third so you’d count everything after the phytoplankton
<span>The most important point being that the natural balance in an ecosystem is maintained. This balance may be disturbed due to the introduction of new species, the sudden death of some species, natural hazards or man-made causes.
if biodiversity reduce so ecological balance also disturbe because ecological balance formed by biodiversity that are animals and plants.</span>
Ventromedial hypothalamus
