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