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