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Unit 3 Study Guide
Terms in this set (37)
non-living chemical or physical factors in the environment, such as soil, pH, forest fire, etc.
a large naturally occurring community of flora and fauna occupying a major habitat, e.g. forest or tundra
The number and variety of different species in a given area
all living organisms in the environment, such as plants, animals, fungi, etc.
the largest population that an ecosystem can support over time
a group of different species living and interacting within one Region
all of the living things (plants, animals and organisms) in a given area, interacting with each other, and also with their non-living environments (weather, earth, sun, soil, climate, atmosphere); a community of the interdependent organisms and their environment
the natural home or environment of an animal, plant, or other organism
an organism (plant, animal, fungus, or bacterium) that is not native and has negative effects on the economy, environment, or health of the native ecosystem
abiotic or biotic factors that restrict the growth of a population (Ex: food, shelter and temperature).
The combination of behaviors and resources that an organism is adapted to exploit
an individual life form
Organisms of the same species that share the same habitat
an animal that naturally preys on others
an animal that is hunted or seized by an animal for food
a unit of basic biological classification
organisms with no natural predators of their own, residing at the top of their food chain
an organism that eats other animals to obtain energy
The process in which cells derive energy from organic compounds. Many animals have to use cellular respiration in order to derive energy.
An organism that feeds on other organisms
the activity or condition of striving to gain or win something by defeating or establishing superiority over other living things and the environment
an organism that obtains energy and food from decaying organic matter
A model that describes how matter and energy is transferred from one organism to another
An interrelated group of food chains in a community
a consumer that eats plants
a consumer that can eat both plants and animals
the process by which organisms make organic compounds by using the energy in sunlight.
usually microscopic photosynthetic organisms, algae and diatoms; mostly, found in water
A photosynthetic or chemosynthetic organism that makes its own food
an animal that feeds on carrion (dead animals), dead plant material, or refuse
a feeding level in a food chain such as primary consumers and decomposers
usually microscopic, non-photosynthetic plankton consisting of animals and animal-like organisms
the study of the Interactions among Living Things and the environment
the total amount of biotic factors in a material area
Green pigments found in photosynthetic organisms. Chlorophyll is present in all green plants and in cyanobacteria, which is responsible for the absorption of light to provide energy for photosynthesis
making organic compounds using energy released from chemicals-- an example is tube worms. Deep sea vents on the ocean floor spill out chemicals that organisms use to make food since they are not exposed to the sun.
A surface on which an organism can live, grow, and gather energy. Also a submerged surface area where quagga mussels can live.