biology - Organisms and their environment
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12 Terms
Sun
principal source of energy input to biological systems
food chain
showing the transfer of energy from one organism to the next, beginning with a producer
food web
a network of interconnected food chains and interpret food webs
producer
an organism that makes its own organic nutrients, usually using energy from sunlight, through photosynthesis
consumer
an organism that gets its energy by feeding on other organisms
herbivore
animal that gets its energy by eating plants
carnivore
an animal that gets its energy by eating other animals
decomposer
an organism that gets its energy from dead or waste organic material
trophic level
the position of an organism in a food chain and food web
ecosystem
a unit containing the community of organisms and their environment, interacting together
biodiversity
the number of different species that live in an area
how endangered species can be conserved
(a) monitoring and protecting species and habitats (b) education (c) captive breeding programmes (d) seed banks
Note 
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