The present day _________ have representatives most like the earliest eukaryotes.
A)Diplomonads
B)Euglenozoa
C)Alveolata
D)Rhodophyta
E)Stramenopila

Question

Quizplus · Accepted Answer

Diplomonads, such as Giardia, are thought to be the earliest branching eukaryotic lineage. They lack mitochondria and have simple, anaerobic metabolism, similar to what the first eukaryotes would have had. Other groups, such as Euglenozoa and Stramenopila, have more complex organelles and metabolic processes that evolved later in eukaryotic evolution. Alveolata and Rhodophyta evolved later and have additional complex features such as plastids and complex life cycles.

The Present Day _________ Have Representatives Most Like the Earliest