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