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