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An environment that provides the things a specific organism needs to live, grow, and reproduce. |
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The parts of a habitat that are living, or once living, and interact with an organism.
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| Nonliving parts of an organism’s habitat. |
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| a group of organisms that can mate with each other and produce offspring that can also mate and reproduce. |
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All the members of one species living in a particular area
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| All the different populations that live together in an area. |
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| A community of organism that liven in a particular area, along with their abiotic (non living) environment. |
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The study of how organisms interact with each other and with their environment.
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| the number of births in a specific population in a certain time period. |
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| the number of deaths in a specific population in certain time period. |
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| means leaving a population |
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| The number of individuals in an area of a specific size |
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Population Density Formula: |
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Definition
number of individuals
Unit area
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| an environmental factor that causes a population to stop growing or decrease in size: climate, space, food, and water |
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| The largest population that an area can support |
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| The role of an organism in its habitat |
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| The struggle between organisms to survive as they attempt to use the same limited resources. |
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| An interaction in which one organism kills another food or nutrients. |
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| The organism that does the killing |
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| The organism that is killed |
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| when two different species live closely together and at least ONE of the species benefits. |
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| A relationship in which both species benefit. |
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| A relationship in which in which one species benefits and the other is neither helped or harmed. |
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| A relationship that involves one organism living with, on, or inside another organism and HARMING it. |
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| The organism that benefits |
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| The organism that it LIVES ON |
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| A series of predictable changes that occur in a community over time |
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| is the series of changes that occur in an area where no soil or organisms exist. Occurs when a new volcanic island forms. |
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| The first species to populate and area. |
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| A series of change that occurs in an area where the ecosystem has been disturbed by forest fires, hurricanes, farming, and logging. |
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| An organism that can make its own food. |
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| An organism that obtains energy by feeding on other organisms. |
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| consumers that eat only plants |
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| consumers that eat only animals |
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| consumers that eat both plants and animals. |
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| a carnivore that fees on the bodies of dead organisms. |
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| Break down wastes and dead organism and return the raw materials to the ecosystem. |
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| a series of events in which one organism eat another and obtains energy. |
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| Consist of many overlapping food chains in an ecosystem. |
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| Shows the amount of energy that moves from one feeding level to another in a food web. |
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| Anything that occurs naturally in the environment and is used by people. |
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| The contamination of Earth’s land, water, or air. |
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| Pollution can be linked to a specific source. |
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| Pollution that cannot be linked to any one source. |
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| the study of environmental issues and how humans can affect them. |
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| resources which are always available or is naturally replaced in a relatively short period of time. |
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| resources which are not replaced in a useful time frame. |
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| three were formed many hundreds of millions of years ago before the time of the dinosaurs. |
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| using a resource in a way that maintains the resource at a certain quality for a certain period of time. |
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| The amount of land and water that individuals use to meet their resource needs and absorb the wastes they produce. |
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| The practice of managing the uses of resources wisely so that the resources last longer. |
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