it kills large predators like sharks.
it makes the water more acidic.
it makes the water saltier.
phytoplankton
prokaryotes
eukaryotes
zooplankton
To attract a mate
Just for fun
To see in the dark
To scare away predators
the ocean
algae
All plankton are microscopic (too small to see without a microscope).
Hundreds of cells
A few dozen cells
Millions of cells
Thousands of cells
microscopic
aquatic (water-living)
drifting or wandering
plants
Zooplankton are tiny animals.