Flashcards
1.1 populations and ecosystems
Cards in this deck (10)
- 1what is ecology?the study of the inter-relationships between organisms and the environment
- 2what is an abiotic factor?a non-living factpr such as rain and temperature
- 3what is a biotic factor?a living factor such as competition and predation
- 4what is a biosphere?the life supporting layer of land, air and water that surrounds the earth.
- 5what are the two major processes in an ecpsystem?the flow of energy through an ecosystem
the cycling of elements within the system - 6define populationa group of interbreeding organisms of one species in a habit.
- 7what is a community?all the populations of different organisms living and interacting in a particular place at the same time.
- 8what is a habitat?the place where the community of organisms live
- 9what is a microhabitat?the smaller units within a habitat, each with its own microclimate.
- 10what is a niche?where an organism live and what it does there. no two species occupy the same niche.
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- A-Level A2 BIOL4 (1. populations ) Flashcards on 1.1 populations and ecosystems , created by Charlotte Hewson on 07/03/2016.
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- Charlotte Hewson
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