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