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