Question

Which is a possible reason for the transition of algae from unicellularity to multicellularity?

Answer 1

The evolution of it's unicellular characteristics form organelles, and various properties which can change an algae from unicellular to multicellular can occur and can change it's nature.

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Answer 2

A possible reason for the transition of algae from unicellularity to multicellularity would be the evolution of multicellularity allowed algae to develop traits that keep them close to the land and thus a source of nutrients. The correct answer between all the choices given is the last choice.