Freshwater biomes have
a. organisms adjusted to high salinity
b. more diversity than marine biomes
c. a salinity of less than 1%
d. the ability to maintain their temperature year round

Freshwater biomes are big areas of plants and animals that are centered around waters that have less than 1% concentrations of salt. They consist of small bodies of water, such as creeks, lakes, streams, and rivers. Most plants and animals can not survive without freshwater biomes. And over half of the water that humans and animals drink come from freshwater biome sources.

Size and shape of continents