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