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