Biol4 section 1 definitions - Flashcards in A Level and IB Biology

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Created by: Georgina Nelson
Created on: 10-01-14 10:43


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Across

1. Life supporting layer of land, air and water that surrounds the Earth. (9)
4. All the populations of different organisms living and interacting in a particular place at the same time. (9)
5. The number of individuals of a species in a given space. (9)
7. A variable that limits the rate of a chemical reaction. (8, 6)
9. Non-living (components include temperature and rainfall). (7)
10. An organism that is fed upon by another organism. (4)

Down

2. A group of individuals of the same species that occupy the same habitat at the same time. (10)
3. A method used to avoid bias in collecting data. Quadrats and randomly generated numbers are used. (6, 8)
6. More or less self-contained functional units made up of all the interacting BIOTIC and ABIOTIC factors in a specific area. (9)
8. Living (components include competition and predation). (6)

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