Question

Define the word phytoplankton!

Answer 1

hello

Step-by-step explanation:

Phytoplankton are the autotrophic components of the plankton community and a key part of ocean and freshwater ecosystems.

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Answer 2

plankton consisting of microscopic plants.

Step-by-step explanation:

What is the purpose of phytoplankton?

Through photosynthesis, phytoplankton use sunlight, nutrients, carbon dioxide, and water to produce oxygen and nutrients for other organisms. With 71% of the Earth covered by the ocean, phytoplankton are responsible for producing up to 50% of the oxygen we breathe.