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