How do most primary producers make their own food? *

Primary producers like plants make their own food by doing something called photosynthesis. ... Leaves of plants absorb light from the sun. Leaves of plants also absorb the air that people breathe out, called carbon dioxide. Leaves of plants also absorb water.

Explanation:

most primary producers are plants and they produce food by photosynthesis. In photosynthesis they use carbon dioxide, water and light (most times sunlight) to make glucose and oxygen. the glucose is their food and oxygen is the waste product and is given out.

i think it would be b. tissue because an organ system is a group of organs that work together to perform one or more functions. each does a particular job in the body, and is made up of certain tissues.