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