Question

multiple choice 6.15 points
which of the following is as close as a living organism can be to the protist ancestor of animals?
oomycetes
paramecium
choanoflagellate
brown algae

Explanation:

Choanoflagellates are considered the closest living relatives to animals among protists. They have cell - surface receptors and signaling pathways similar to those in animals, and their colonial forms resemble early multicellular animal structures. Oomycetes are fungus - like protists, Paramecium is a ciliate, and brown algae are photosynthetic protists, none of which are as closely related to the animal protist ancestor as choanoflagellates.

Answer:

Choanoflagellate