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