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