The closest living relative of P.chromatophora is the heterotroph P.ovalis.P.ovalis uses threadlike pseudopods to capture its prey,which it digests internally.Which of the following,if observed,would be the best reason for relabeling P.chromatophora as a mixotroph?
A)a threadlike pseudopod
B)a vacuole with food inside
C)a secretory vesicle
D)a contractile vacuole

Question

Quizplus · Accepted Answer

A vacuole with food inside would indicate that P.chromatophora is capable of ingesting and digesting food internally, which is a characteristic of heterotrophy. If it also performs photosynthesis, this would make it a mixotroph, combining both autotrophic and heterotrophic modes of nutrition.

The Closest Living Relative of P