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