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