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