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