Microbiology of water

Question 1

…% of the Earth’s surface is water covered.

Oceans hold about …% of all Earth’s water.

Answer 1

71 ; 96.5

Question 2

On what does the biological activity of an aquatic ecosystem depend on the activities of which primary producers.?

Answer 2

• algae

- cyanobacteria

Question 3

What are primary producers?

Answer 3

Oxygenic photoautotrophs, phytoplankton