Question

question: which type of relationship exists between corals and algae? answer options: select one of four commensalism amensalism symbiotic parasitic

Explanation:

Corals and algae (specifically zooxanthellae) have a symbiotic relationship. In this relationship, the algae live within the coral's tissues, the coral provides a protected environment and compounds for photosynthesis, and the algae produce oxygen and organic compounds (like glucose) that the coral uses. Commensalism is when one benefits and the other is unaffected, amensalism is when one is harmed and the other unaffected, and parasitic is when one benefits at the expense of the other (harming it). The coral - algae relationship is mutualistic (a type of symbiosis) where both benefit.

Answer:

Symbiotic