Question

Which group is INCORRECTLY paired with its description?

diatoms - important producers in aquatic communities
red algae - acquired plastids by secondary endosymbiosis
apicomplexans - parasites with intricate life cycles
diplomonads - protists with modified mitochondria

Answer 1

Answer:

Red algae - acquired plastids by secondary endosymbiosis

Explanation:

Red algae are believed to have undergo a primary endosymbiosis event. Then a second endosymbiosis event created a large group known as heterokonts.  During the primary endosymbiosis event red algae acquire their plastids.