Living Together and Survival
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22 terms
Terms | Definitions |
|---|---|
 food chain | a chain of organisms in which each organism is eaten by the next in the chain |
| producer | organism which make their own food using the energy of the sunlight |
| consumer | organism which eats other organisms |
| herbivore | consumer which only eats plants |
| carnivore | consumer which eats other animals |
| habitat | living place of an organism |
| community | different groups of organisms living together in a particular habitat |
| population | number of organisms of the same kind living in a particular area |
| scavenger | animal which eats dead or dying organisms, or any other food in their habitat |
| decomposer | organisms (such as bacteria or fungi) which break down (decay) the bodies of dead organisms into simpler substances |
| enzymes | biological catalysts which speed up (or control) chemical reactions in organisms |
| nitrogen-fixing bacteria | bacteria which change atmospheric nitrogen into nitrates |
| predators | animals which feed on other living animals |
| competitors | organisms competing for food and living space |
| mammal | animal with a backbone, hair, sweat glands and the ability for the female to produce milk |
| adaptations | characteristics of an organism which enable it to survive in its particular habitat |
| structural adaptations | refers to the shape and size of the organism and how the various parts of its body are put together |
| functional adaptations | refers to the working of an organisms body |
| behavioural adaptations | are to do with how the organism behaves |
| natural selection | process by which organisms which have favourable characteristics survive in a particular habitat, and reproduce |
| environment | everything in an organisms habitat, both physical and biological, which affects its survival |
| stomata | tiny openings on the surfaces of leaves which allow gases to travel into and out of the leaf |
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