Question

which of these statements is true about autotrophs, but not heterotrophs? they use sugar and oxygen to make carbon dioxide and water. they use chlorophyll and oxygen to make carbon dioxide and water. they use sunlight, water, and carbon dioxide to make sugars. they use sunlight, water, and oxygen to make chlorophyll.

Explanation:

Autotrophs, like plants, perform photosynthesis. They use sunlight, water, and carbon - dioxide to produce sugars and oxygen. Heterotrophs cannot do this and rely on consuming other organisms for energy. The first two options describe cellular respiration which both autotrophs and heterotrophs can do. The last option is incorrect as oxygen is not used to make chlorophyll.

Answer:

They use sunlight, water, and carbon dioxide to make sugars.