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