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