Which of the following eukaryotic lineages contains species that all lack functioning mitochondria?
A) Excavata
B) Rhizaria
C) Amoebozoa
D) Stramenopila

Question

Quizplus · Accepted Answer

Excavata is the only eukaryotic lineage that contains species that lack functional mitochondria. Instead, some species have a modified form of mitochondria called hydrogenosomes or mitosomes that generate energy through anaerobic pathways. Rhizaria, Amoebozoa, and Stramenopila all have functional mitochondria.

Which of the Following Eukaryotic Lineages Contains Species That All