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