Question

+50 pts How can you tell that algae filaments are composed of several cells rather than just one?

Answer 1

Non-scientific method:

Well, an easy way is observing the filament under a microscope: if it contains one cell it's unicellular and if it contains more than one cell it's multicellular.

Scientific method:

Filamentous algae are, in principle, single-celled. But, sometimes they can form colonies and evolve to be multicellular. But still, if they just form a colony they'll still be unicellular until they start changing.

Answer:

Unicellular.

Hope it helped,

BioTeacher101

Answer 2

How can you tell that algae filaments are composed of several cells rather than just one?

Well algae contains chlorophyll, and large alagae that trap light for food are unicellular and multicellular are organisms.

Algae can be multiceulluar or unicellular. It just depends on its environment and where is lives.