Question

Which group is incorrectly paired with its description?

Answer 1

Answer:

b. red algae—eukaryotes that acquired plastids by secondary endosymbiosis

Explanation:

• Red algae did not acquire plastids by secondary endosymbiosis and thus, option b is an incorrect pair.
• Red algae are eukaryotes that are red in the color not because they acquired plastids y endosymbiosis but because they produce the enzyme phycoerythrin and phycocyanin which masks the other pigments present in it.
• Secondary endosymbiosis is a process by which the product of primary endosymbiosis is engulfed by another organism. Such type of process never occurred in case of red algae.