A student hypothesized that pillar coral eat and digest zooxanthellae for energy. Which observation would cause the student to change this
hypothesis?

A. The zooxanthellae in a pillar coral's body are alive.
B. Zooxanthellae are a type of phytoplankton found in the ocean.
C. Pillar coral are a type of coral that needs sunlight to survive.
WEMA
D. The pillar coral are an important part of many coral reefs.
y coral reefs.

According to this hypothesis that pillar coral digested zooxanthellae, the coral digested zooxanthellae inside the pillar coral must be dead. If anything is engulfed then it should be first dead inside the body of the predator and then the energy is extracted from the food. The food eaten serves as a source of energy.

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