NEET BIOLOGY

Detailed explanation-1: -Larger phytoplankton are single-celled algae also known as protists-tiny organisms that also contain chloroplasts. Many photosynthetic protists are capable of movement and some also hunt and eat other single-celled organisms.

Detailed explanation-2: -There are more than 20, 000 species of phytoplankton distributed among eight major taxonomic groups. They range in size from less than 1 µm to greater than 100 µm.

Detailed explanation-3: -Some phytoplankton are bacteria, some are protists, and most are single-celled plants. Among the common kinds are cyanobacteria, silica-encased diatoms, dinoflagellates, green algae, and chalk-coated coccolithophores.

Detailed explanation-4: -Phytoplankton are microscopic plant-like organisms that live in the oceans, lakes, and rivers. There are a billion billion billion phytoplankton in the world’s oceans-more than there are stars in the sky.