Around 320. That is the avg. Amount.
Plankton
population
Hydrobionts are organisms that live in water environments, such as oceans, rivers, and lakes. They can include various types of plants, animals, and microorganisms that are adapted to life in aquatic ecosystems. These organisms play crucial roles in nutrient cycling, food webs, and overall ecosystem health.
A saltwater river has a higher salinity level due to the presence of salt in the water, which affects the types of organisms that can live in it. Saltwater rivers are influenced by tides and have a different ecosystem compared to freshwater rivers, which have lower salinity levels and support different plant and animal species.
piranhas don't like in the sea they live in white water rivers in South America.
Many different types of piranhas live in the rivers, streams and lakes of South America, ranging from small to quite large and lethal.
Can different types of live breeders? What?
Biodiversity refers to the variety of different types of organisms that inhabit a specific area. It includes the diversity of species, genetic diversity within species, and diversity of ecosystems present in that area.
Well, the plants and all the animals are organisms!
deers
There are many types of animals that live in rivers. Raccoons, snakes, fish, frogs, platypus, and otters are all animals that stay in the rivers.
organisms in fresh water had to adapt. they first lived in the oceans.