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