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