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Organism |
A living thing. |
Habitat |
The place where an organism lives and where it obtains all the things it needs to survive. |
Biotic factor
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A living part of an organism's habitat. |
Abiotic factor |
A nonliving part of an organism's habitat. |
Photosynthesis |
The process in which organisms use water along with sunlight and carbon dioxide to make their food. |
Species |
A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce. |
Population
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All the members of one species in a particular area. |
Community
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All the different populations that live together in an area. |
Ecosystem
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The community of organisms in an area, along with their nonliving surroundings. |
Ecology |
The study of how living things interact with each other and their environment. |
Birth rate
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The number of births in a population in a certain amount of time.
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Death rate
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The number of deaths in a population in a certain amount of time.
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Immigration
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Moving into a population.
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Emigration
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Leaving a population.
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Limiting factor
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An environmental factor that causes a population to decrease.
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