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Question

Changing Coral Reef Quick Check
1 of 41 of 4 Items
Question
How are algae and polyps related?(1 point)
Responses

The polyps embed themselves in the flesh of the algae.
The polyps embed themselves in the flesh of the algae.

The polyps receive carbon dioxide from the algae.
The polyps receive carbon dioxide from the algae.

The polyps receive shelter from the algae.
The polyps receive shelter from the algae.

The polyps get most of their food from the algae.
The polyps get most of their food from the algae.
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Answer 1

The correct response is:

The polyps get most of their food from the algae.

Coral polyps have a symbiotic relationship with the algae (zooxanthellae) that live within their tissues. The algae perform photosynthesis and provide the polyps with food, while the polyps provide the algae with a protected environment and the compounds necessary for photosynthesis.