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Ecology Chp5

QuestionAnswer
Competition a struggle between organisms for a scarce resource in their environment
Scramble Competition competition whereby all competing organisms recieve a small part of the scarce resource
Contest Competition Competition where there is a physical confrontation between two individual organisms and usually one wins all of the resource
Predation The catching, killing and eating of an organism
Prey an organism that is caught, killed and eaten by another
Predator an organism that catches, kills and eats other organisms
Adaptations of prey against predation Ladybirds are striking black and red, indication that they produce toxic chemicals / frogs are well camouflaged in theyre natural environments / Mice have learnt to flee and hide
Adaptations of predators Ladybirds have strong mouthparts to eat aphids / Buzzards and other birds of prey have evolved excellent eyesight to see their prey from the sky
Parasitism when two organisms of different species live in close association whereby one organism (the parasite) obtains its food at the expense of the other (the host)
Symbiosis When two organisms of different species live in close association and at least one organism benefits from the relationship. (Mutualism)
Account for the predator prey relationship its inter-related...
Niche The functional role of an organism in its ecosystem
What tf does the niche account for What it eats, what it is eaten by, its interactions with other organisms and its abiotic environment
Main cause of global warming: The addition of Carbon dioxide to the atmosphere as a result of combustion of fossil fuels
Effects of global warming A rise in global sea-levels / melting of ice caps which decreases the Albedo effect / Rise in global temps / change in large currents / change of weather patterns / extreme weather events - forest fires
Why is earth considered to be an ecosytem because no one part is completely isolated from the rest
Created by: serrraphina
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