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RIVER AND STREAM BIOME
Transcript of RIVER AND STREAM BIOME
Platypuses lives in Australia and is not native to anywhere else. Trouts live near the headwaters of rivers and streams.They have streamlined bodies that let them swim against strong currents.
Alligators and crocodiles have powerful tails to propel themselves through the water. Alligators live in the United States and China, while crocodiles live in Africa, India, Southeast Asia, and Australia, and parts of North, Central and South America.
Fish that require less oxygen, such as catfish and carp, can be found. At the end of a river the water is murky and has does not have that much oxygen. Fish that require less oxygen, like catfish and carp, can be found there. http://www.ucmp.berkeley.edu/exhibits/biomes/freshwater.php
Science Explorer Grade 7 (our science textbook) Sources Ponds and Lakes Both freshwater
have similar animals
have similar plants
could be connected to each other running water
long stretches of land bordering their sides
connected to seas or oceans still water
enclosed by land
not connected to the seas or oceans From:http://www.enchantedlearning.com/geography/rivers/ Threats Rivers and streams are threaten by mainly humans. We build dams all over the world in rivers that harm the environment. When a dam is built, a lake is made behind the dam. Dams can be viewed as good and bad. Dams may provide pollution-free energy, and create lakes for people to enjoy, but they can also damage the environment. Salmon are a species that use rivers to spawn, and are often hurt by dams. We are also a threat, because when we liter, fertilize the lawn with chemicals, and allow our cars to drip nasty oils and fluids we are polluting freshwater biomes. The rain carries these pollutants down storm drains into rivers, streams, lakes and ponds. Little or big changes to rivers can wipe all life in a river or put them in danger. Rivers and streams would carry these pollutants to bigger rivers or an ocean which could lead to more pollution problems. http://www.factzoo.com/mammals/platypus-duck-bill.html animals.nationalgeographic.com