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