Which evolutionary hypothesis best explains why microsporidia lack mitochondria?
A) They became photosynthetic and could manufacture their own energy.
B) They became chemosynthetic and could manufacture their own energy.
C) They are primitive eukaryotes that never evolved this organelle.
D) They are prokaryotes like bacteria and thus lack nuclei and organelles.
E) They rely on a host organism for energy.

Question

Quizplus · Accepted Answer

Microsporidia are obligate intracellular parasites that rely on their host for energy, which explains the loss of mitochondria.

Which Evolutionary Hypothesis Best Explains Why Microsporidia Lack Mitochondria