Question

Phytoplankton are important in nature as -

They are a source of food for humans

They are a souce of medicine

They are a source of natural colors and dyes

They are a source of food for fish​

Answer 1

Answer:

Phytoplankton are extremely diverse, varying from photosynthesizing bacteria (cyanobacteria), to plant-like diatoms, to armor-plated coccolithophores (drawings not to scale). (Collage adapted from drawings and micrographs by Sally Bensusen, NASA EOS Project Science Office.)