Biology End of Term Exam revision (ENERGY TRANSFER T2(pt1))

This card will cover food webs and KEY definitions

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FOOD WEBS AND KEY DEFINITIONS

What is a food web? A food web is a MORE COMPLEX chain of illustrations to show the feeding relationships between PRODUCERS(1), CONSUMERS(2) and other species at different TROPHIC LEVELS(3). The arrows show ther flow of energy from one organism to another

Definitions:1) PRODUCER: this is usually a green plant which can use its CHLOROPHYLL to ABSORB sunlight from the sun. This then creates its OWN ENERGY, which is transferred to the PRIMARY CONSUMER

2) CONSUMER: this is the organisms which eats the organism on the TROPHIC LEVEL BELOW. They lose energy through lots of factors (see card2) which the next consumer CANNOT DIGEST as it has been lost.

PRIMARY CONSUMER--SECONDARY CONSUMER--TERTIARY CONSUMER

3) TROPHIC LEVEL: this is the stage or place an organism comes in the food chain/web

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