Quarter Three Ecosystems Unit
Terms in this set (49)
living and nonliving things in an environment, together with their interactions
any nonliving component of an enviroment
the living organisms in an ecosystem
Large region of the earth with particular plant and animal communities largely determined by the region's climate
A habitat in which the fresh water of a river meets the salt water of the ocean.
an extremely cold, dry biome that has few trees. The top layer of earth is permanently frozen (permafrost). It has low diversity of organisms
biome in which the winters are cold and snowy but summers are mild enough to allow the ground to thaw
A type of biome characterized by very little rainfall . It is hot during the day, but cold at night.
dense forest that receives high amounts of rain each year, and it is warm and humid year-round. It has the most diverse population of organisms.!
A biome with four seasons, plants shed leaves in the fall and grow new ones in the spring.
a type of forest characterized by cone-bearing, needle-leaved trees. The trees are pointy so that snow will slide off of them.
biome composed of large communities covered with grasses and similar small plants. It is also called a Savannah or Prarie
an organism that makes its own food by using energy from the sun
organism that relies on other organisms for its energy and food supply; also called a heterotroph
organisms, such as fungi and bacteria, that break down and absorb nutrients from dead organisms
animal that hunts and eats other animals
animal hunted or caught for food
organism that obtains energy by eating only plants
organism that obtains energy by eating animals
an animal that eats both plants and animals
series of steps in an ecosystem in which organisms transfer energy by eating and being eaten
a diagram that shows the feeding relationships between organisms in an ecosystem
the status of an organism within its environment and community (affecting its survival as a species)
Place where an Organism lives
a group of organisms of the same species populating a given area
a group of interdependent organisms inhabiting the same region and interacting with each other
any biotic or abiotic factor that restricts the existence, numbers, reproduction, or distribution of organisms
the struggle between organisms to survive in a habitat with limited resources
the degree of hotness or coldness of an environment
a fluid necessary for the life of most animals and plants
rock particles,minerals,decayed organic material,water and air
Release of harmful materials into the environment by human activities
a material found in air, water, or soil that is harmful to humans and other organisms
The process of stripping the land of its trees
the continuous movement of water between Earth's surface and the air, changing from liquid to gas to liquid (precipitation, runoff, evaporation/transpiration, condensation, groundwater,
the circulation of nitrogen
A living thing
A measure of the amount of salts dissolved in seawater
A protist that produces its food by photosynthesis.
A land area that is covered with a shallow layer of water during some or all of the year
A term that describes an organism associated with a land environment.
a marsh containing grasses and other vegetation that can tolerate brackish water found along the coast in temperate climates
A term that describes an organism associated with a water environment.
of or relating to the sea or saltwater
relating to or living in or consisting of water that is not salty
A relationship between two species in which both species benefit
A relationship between two organisms of different species where one benefits and the other is neither harmed nor benefited
A relationship between two organisms of different species where one benefits and the other is harmed