An experiment showed that the growth of pillar coral decreased in warm
water in which other organisms blocked sunlight. which conclusion can be
made based on these data?
o
a. pillar coral are unable to eat or digest zooxanthellae.
o
b. pillar coral need sunlight so the zooxanthellae inside them can
make food.
o
c. pillar coral do not need zooxanthellae or sunlight to survive.
o
d. pillar coral need warm water so they can live free of
zooxanthellae.