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