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Ecology and the environment

Huff Puff

IGCSE BIOLOGY

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Across
11.An organism that causes decay of dead material such as fungi or bacteria
12.They eat primary consumers
13.Study of the environment
14.The interaction of all organisms living within an area and the environment around them
15.Produce their own food using light energy from photosynthesis
Down
1.Shows the energy content of different trophic levels of a food chain, always a pyramid shape
2.They eat the tertiary consumers
3.The first consumers of other organisms in a food chain
4.Shows who eats what in a habitat
5.Shows the biomass in different trophic levels of a food chain, often a pyramid shape
6.A feeding level in a food chain or food web
7.Food chains within a habitat are linked together to form these
8.The mass of living material, such as the mass of a living organism
9.Shows the number of individual organisms in different trophic levels of a food chain, often a pyramid shape
10.They eat the secondary consumers

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