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