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