!! 4. Within aquatic biomes, there are many different
environments where different types of organisms
thrive. Phytoplankton, seaweed and other organisms
that perform photosynthesis live in the ocean waters
near the surface, but not in the deepest ocean waters.
Which statement about surface water is most useful
for explaining this observation? (17.2)
a. Only surface water is warm enough for
photosynthesis
b. Only surface water has sufficiently low salinity for photosynthesis
c. Only surface water has dissolved oxygen needed for photosynthesis
d. Only surface water has received enough sunlight for photosynthesis