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35 Cards in this Set
- Front
- Back
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Adaptation |
Inherited characteristics that increases an organisms chance for survival |
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Asexual Reproduction |
Process by which a single parent reproduces by itself |
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Autotroph |
Organism that can make it's own food from inorganic materials; also called producer |
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Biogeochemical Cycle |
A process in which matter is passed from one organism to another and from one part of of the biosphere to another |
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Biology |
Science that seeks to understand the living world |
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Biome |
A group of ecosystems that have the same climate and dominate communities |
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Biosphere |
A part of earth in which life exists including land, water, air or atmosphere |
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Carnivore |
An organism that obtains energy by eating animals |
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Cell |
A collection of living matter enclosed by a barrier that separates the cell from it's surrounding; basic unit of all forms of life |
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Community |
Assemblage of different populations that live together in a defined area |
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Decomposer |
Organism that breaks down and obtains energy from dead organic matter |
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DNA |
Nucleic acid that contains the sugar deoxyribose |
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Ecological Pyramid |
Diagram that shows the relative amounts of energy or matter within each trophic level in a food chain or food web |
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Ecology |
Scientific study of interactions among organisms and between organisms and their environment |
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Ecosystems |
A collection of all the organisms that live in a particular place, together with their non living environment |
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Evaporation |
A process by which water changes from a liquid into an atmospheric gas |
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Evolution |
Change in a kind of organism over time; process by which modern organisms have descended from ancient organisms |
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Food Chain |
Series of steps in an ecosystem in which organisms transfer energy by eating and being eaten |
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Food Web |
Network of complex interactions formed by the feeding relationships among the various organisms in an ecosystem |
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Herbivore |
Organisms that obtain energy by eating only plants |
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Heterotroph |
Organisms that obtain energy from the food it consumes; also called consumer |
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Homeostasis |
Process by which organisms maintain a relativity stable internal environment |
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Metabolism |
A set of chemical reactions through which an organisms builds up or breaks down materials as it carries out it's life process |
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Nitrogen Fixation |
Process of converting nitrogen gas into ammonia |
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Omnivore |
Organism that obtains energy by eating both plants and animals |
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Photosynthesis |
Process by which plants and some other organisms that use light energy to convert water and carbon dioxide into oxygen and high-energy carbohydrates such as sugars and starches |
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Population |
The count of organism in an area |
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Producer |
An organism that is a part of the first level of the food chain |
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Response |
A reaction as that of an organism to a stimulus |
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Sexual Reproduction |
The production of a new living organism by combining genetic codes of two individuals |
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Species |
A group of living things that can breed together |
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Stimulus |
Something that can elicit or evoke a physiological response in a cell, tissue, or an organism |
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Transpiration |
Process where plants absorb water through roots and off water vapor through pores in leaves |
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Trophic Level |
Each of several hierarchical levels in an ecosystem comprising organisms that share the same function in the food chain and the same nutriental relationship to the primary sources of energy |
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Consumer |
Organism that relies on other organisms for energy and food supply; also called heterotroph |
