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