Which of the following statements concerning protists is correct?
A)All protists have mitochondria,although in some species they are much reduced and known by different names.
B)The primary organism that transmits malaria to humans by its bite is the tsetse fly.
C)All apicomplexans are autotrophic.
D)All slime molds have an amoeboid stage that may be followed by a stage during which spores are produced.
E)Euglenozoans that are mixotrophic lack functional chloroplasts.

Question

Quizplus · Accepted Answer

This statement is correct. While some protists have reduced or modified mitochondria, all protists have them in some form.

Answer: E
 This statement is correct. Euglenozoans that are mixotrophic are able to both photosynthesize and ingest food, but they lack functional chloroplasts and instead obtain their photosynthetic abilities by engulfing other photosynthetic organisms.

Answer: B, C, and D 
 These statements are all incorrect. The primary organism that transmits malaria to humans is the female Anopheles mosquito, not the tsetse fly. Not all apicomplexans are autotrophic; in fact, most are obligate parasites. While slime molds do have an amoeboid stage, not all species produce spores.

Which of the Following Statements Concerning Protists Is Correct