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