Question

What percentage of algae uses photosynthesis to make their own food?

0%
15%
50%
100%

Answer 1

Answer: 100%

Explanation: 100% algae use the process of photosynthesis to make food. They have green colored pigment called chlorophyll.

This chlorophyll is used by the algae to absorb the sunlight and carbon dioxide from the environment to make food by the help of photosynthesis.

They are known to be the producers that make food for them and other organisms present in the environment.

Answer 2

I think the correct answer from the choices listed above is the last option. The percentage of algae that uses  photosynthesis to make their own food is 100%. Algae produce their own food so all they do photosynthesis as they need it to survive. Hope this answers the question.