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