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