Question

How are algae and polyps related
The polyps get most of their food from the algae
The polyps receive shelter from the algae
The polyps embed themselves in the flesh of the algae
The polyps receive carbon dioxide from the algae

Answer 1

Algae and polyps, particularly in the context of coral reefs, have a symbiotic relationship primarily characterized by the following statement:

**The polyps get most of their food from the algae.**

In this relationship, the algae (specifically a type of algae called zooxanthellae) live within the tissues of the coral polyps. The algae perform photosynthesis, producing organic compounds that provide the polyps with nourishment. In return, the polyps provide the algae with a protected environment and access to sunlight, which is necessary for photosynthesis. This mutualistic relationship is crucial for the health of coral reefs.

The other statements (shelter, embedding in flesh, and receiving carbon dioxide) do not accurately describe the nature of the relationship in a way that highlights the primary benefit to the polyps.