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