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