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