Which protozoan is used to test hypotheses of how multicellular organisms arose from their closest unicellular relatives?
A)microsporidians
B)choanoflagellates
C)opalinids
D)retortamonads
E)kinetoplastans

Question

Quizplus · Accepted Answer

Choanoflagellates are a group of unicellular eukaryotes that have several characteristics similar to the cells that make up the collar cells or choanocytes of sponges, which are the simplest multicellular animals. Therefore, studying choanoflagellates is beneficial in understanding the evolutionary pathway of multicellular organisms from their closest unicellular relatives.

Which Protozoan Is Used to Test Hypotheses of How Multicellular