A biologist discovers an alga that is marine, multicellular, and lives at a depth reached only by blue light. This alga probably belongs to which group?
A) red algae
B) brown algae
C) green algae
D) dinoflagellates
E) golden algae

Question

Quizplus · Accepted Answer

Red algae are adapted to live in deeper water and can absorb blue light, allowing them to photosynthesize at greater depths. Additionally, red algae are typically multicellular, making this the most likely group for the described alga. Brown algae and green algae can also be multicellular, but brown algae typically do not live at such depths, and green algae do not typically absorb blue light. Dinoflagellates and golden algae are typically unicellular and may not be adapted to live at such depths.

A Biologist Discovers an Alga That Is Marine, Multicellular, and Lives