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science work

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Across
1
Any living component that affect the population of another organism, or the environment
4
The action of one's own country to settle permanently in another
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An individual animal, plant , or single-celled life form
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The ratio of death to the population of a particular ares period of time
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The process by which green plants and some other organisms use sunlight to synthesize food from carbon dioxide and water
Down
2
The action of coming to live permanently in a foreign country
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Determine which species of organism will survive in a given environment
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The natural home or environment of an animal, plant,or other organism
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The number of lives births per thousand of population per year
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The number or quantity of people or things that can be conveyed or held by a vehicle or container