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