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the continuous movement of water between Earth's surface and the air. Ex: precipitation, runoff, condensation, evaporation
the transfer of nitrogen between the atmosphere and soil, plants, and animals. Ex: ammonia, bacteria, proteins, fertilizers, fossil fuels
water from rainfall that is not absorbed into the soil and instead flows into streams or lakes
one of the Earth's large ecosystems, each with it's own kind of climate, soil, plants, and animals
A sandy or rocky biome, with little precipitation and plant life. This biome covers most of the western part of the United States.
a hot, humid biome near the equator, with much rainfall and a large variety of life. This biome supports the most animal life.
Temperate Rain Forest
a biome with lots of rain and a cool climate (mild climate and a great deal of rain)
organisms that swim through the water in aquatic ecosystems (can be large active swimmers, such as fish and whales, in water ecosystems)
the shallowest part of the ocean ecosystem, where the ocean floor is covered and uncovered as the tide goes in and out
the continuous movement of water between Earth's surface and the air, changing from liquid to gas to liquid
the area from which water is drained; a river that contributes water to a river or river system
precipitation that seeps into the ground and is stored in tiny holes, or pores, in soil and rocks
the continuous trapping of nitrogen gas into compounds in the soil and its return to the air
Why would more organisms live in shallow water because...
there is more oxygen, and also more sunlight
Why can't trees grow in the tundra?
the cold temperature and frozen ground prevent the growth of trees in the tundra
What is the main difference between primary and secondary succession?
primary succession begins with bare rock
a biome that is hot and humid and the seasons change very little and there are many different kinds of plants and animals
a biome where it is cold and there is little precipitation. A layer of permafrost is on the top layer of the ground in this biome.
a biome with lots of grasses and the animals hide in the grasses. Uneven precipitation and warm summers are characteristic of this biome
Large amounts of plant life provide habitats for many species of animals in the _____________________________biome
What are the 4 layers in the tropical forests?
emergent layer, canopy, under story, and forest floor
What are the challenges facing animals in the desert?
there is not much water and the weather is hot and dry
Why does the rain that falls in the desert evaporate quickly?
The heat of the hot hot sun turns it into a gas
What are the cool deserts like?
They are hot during the summer, cold during the winter, and sometimes known to get snow.
What must animals in the desert survive?
They must survive extreme heat, searing sun, and a lack of water.
What is the climate like in the Tropical Rain Forest?
the average temperature is 70-85 degrees F. The precipatation is 80-400 inches per year.
About how much of the Earth's animals and plants live in the Tropical Rain Forest?
1/2 of the Earth's plants and animals
What is the climate like in the Tundra?
It receives an average of 10 inches precipitation per year. The average annual temperature is 10-20 degress F.
less than 10 inches of precipitation per year; may be hot or cold; has a rocky or sandy soil; plants adapt by storing water; many animals are nocturnal, so they are not moving around during the hot days, and the animals that live there don't need much water to stay alive
What happened to the bison in the grassland?
They were hunted and killed almost to extinction for their heavy thick fur.
What does the deciduous forest look like in the winter?
It is usually covered with a blanket of snow and all of the deiciduous trees have lost their leaves.
What causes the seasons to change in a biome?
The tilt of the Earth on its axis causes the Earth to either be closer or further from the sun. The closer a hemisphere is to the sun the warmer the season is. The further the hemisphere is from the sun, the cooler or colder that hemisphere is.
What does the climate of a ciome mean?
It is the average temperature and precipitation of an area for a year.
How many seasons does the deciduous forest have?
it has 4 seasons: winter, spring, summer & fall or autumn
this is a warm, wet biome where plants keep their leaves all year. The most different types of plants and animals live in this biome.
What are the layers of the rainforest biome?
There are 4 layers: emergent layer, canopy, understory and forest floor
forests which receive over 80 inches of rainfall a year and are very warm and trees do not lose their leaves during the year.
when in the tundra is water available?
only for a little while in the summer when it has rained and the water cannot soak into the ground because it is frozen
Droplets that become large and heavy that they no longer stay up in the air fall to earths surface as
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