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