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