Euglena are protists that move by means of flagella, and they contain chloroplasts and an eye spot or light receptor. they are capable of ingesting food by phagocytosis. being simple organisms, they can reproduce asexually. under what environmental condition would we expect euglena to ingest food rather than produce food via photosynthesis?

A. when light is limited

Explanation:

We would expect euglena to ingest food rather than produce food when light is limited. Light, of some type, is required for photosynthesis to occur.

(From USATestprep)

b. the carbon cycle ensures living things have a source of hydrogen

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.