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