prokaryotes
zooplankton
phytoplankton
eukaryotes
microscopic
plants
drifting or wandering
aquatic (water-living)
Just for fun
To attract a mate
To scare away predators
To see in the dark
it makes the water more acidic.
it makes the water saltier.
it kills large predators like sharks.
algae
the ocean
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).