Question

Why is phytoplankton located near the ocean’s surface?
a.
It cannot live in areas of high salinity.
b.
It can more easily evade predators on the oceans’s surface.
c.
It needs access to oxygen only found at the ocean’s surface.
d.
It needs sunlight to survive.


Please select the best answer from the choices provided

A
B
C
D

Answer 1

D — It needs sunlight to survive. Phytoplankton perform photosynthesis, so they stay near the surface where light penetrates.