| Term | Definition |
|---|
| Food | Substance containing energy-rich organic compounds made by organisms and used as a source of energy and matter for life. |
| Ecology | The study of the living and non-living parts of the environment and how they affect organisms |
| Biology | The study of the living things |
| Producers | They make their own food |
| Consumers | Organisms that are unable to make their own food |
| Decomposers | Organisms that live on the decaying organic material, from which it obtains energy and its own raw materials for life |
| Community | Where producers, consumers,and decomposers live and interact with one another |
| Microorganisms | Organisms that are too small to be seen with the unaided human eye |
| Food Chain | The pathway that tells what eats what |
| Food Web | When all the the food chains in the community are connected to one another |
| Chemical Energy | Energy stored in the structure of the molecules, particularly organic molecules |
| Atoms | Made of the smallest particles that do not separately have the properties of the elemant |
| Element | Matter that is made up of a single type of atom |
| Molecules | Combinations of two or more atoms |
| Compound | Matter that is made up of more than one type of atom |
| Biosphere | Outer portion of the earth where life is found(air, water,and soil) |
| Hypothesis | Statement that attempts to explain an abservation |
| Population | Group of individuals of the same type that live in a particular area |
| Mortality | Death rate |
| Birthrate | Rate at which reproduction increases the population |
| Immigration | One or more individuals move into an area where others of their type can be found |
| Emigration | When individuals leave the area |
| Environment | Everything that surrounds and affects an organism |
| Biotic | Living or recently living |
| Abiotic | Non-living |
| Limiting Factors | Any biotic or abiotic factor that can affect the growth of a popualation |
| Carrying Capacity | Greatest number of individuals that a space can support indefinityely without degrading the environment |
| Homeostasis | Fundamental characteristics of living systems |
| Dispersal | Ability of populations of living things to spread from a central place into others |
| Calorie | Amount of energy required to raise the temp. of one gram of water one degree Celsius |
| KCAL | (Kilocalorie)Measure of food energy equal to 1,000 calories |
| Ecosystem | Biological community in its abiotic environment |
| Herbivores | Consumers that eat only plants |
| Carnivores | Consumers that eat other animals |
| Omnivores | Consumers that eat both plants and animals |
| Niches | Organisms roles in the community |
| Habitat | Where organisms live |
| Predator-prey Relationship | The relationship between organisms in which, the predator, feeds on the other, the prey |
| Competition | Interaction between members of the smae population or of two or more populations to obtain a mutually required resource in limited supply |
| Symbiosis | Organisms that live in direct, physical contact with one another |
| Lichens | Leaflike or crustlike structures that grow on rocks or the bark of trees |
| Parasitism | Form of symiosis in which one member benefits and one is harmed |
| Scavengers | Organisms that eat the flesh of dead animals they do not kill |
| Energy Pyramid | Graphic representation of the energy available for use by producers and consumers |
| Biocides | Poisonous substance produced and used to kill forms of life considered to be pests to humans or that spread diseases |
| Biodiversity | Numbers of different types of organisms that live on the earth |
| Species | A group of similar organisms taht can reproduce successfully with others of the same type |
| Extinct | Gone forever |
Combine with other sets
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