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