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