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