Question

According to most biologists, an organism must always perform photosynthesis or chemosynthesis to be considered autotrophic. Why do these biologists say that the euglena is not autotrophic?

a. It is both photosynthetic and saprophyticb. It is always considered autotrophicc. It never can produce its own food photosytheticallyd. It is always euglena

Answer 1

It never can produce its own food photosythetically

Explanation:

Euglenas can obtain food either autotrophically (by photosynthesis) or heterotrophically, depending on environmental conditions. Thus, it does not always perform photosynthesis.