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Biology quiz 1

Topic 1, 6, 2

TermDefinition
Biological Diversity The different kinds of life on earth
Variations Differences among organisms
Species look similar, can mate and produce fertile offspring
adaptations variations that help an organism to survive
structural adaptation a feature on or in the organisms body that helps it better survive
behavioural adaptation the way an organisms acts that helps it better survive
natural selection "survival of the fittest" those best adapted to the environment will pass on their genes
diversity index measure of how diverse an area is
camouflage blending in with your surroundings to remain hidden from predators
mimicry impersonating some other organism that has a helpful adaptation to give yourself the same protection
hibernation going into a metabolic "sleep" to slow down when food is scarce
migration moving great distances to warmer climates or more food
speciation the creation of two distinct species from a common ancestor
artificial selection humans choosing traits they find desirable and breeding those things together
evolution a long term effect of many generations of natural selection
domestic a tame animal in close relationship with humans
niche the role an organism plays in its environment
producer a photosynthetic organism that collects energy from the sun
herbivore eats only producers
omnivore eats other consumers or producers
carnivore eats only other consumers
broad niche generalists. Can survive in a wide range of niches
narrow niche specialist. Can only survive in small niches
symbiosis two organisms in close relationship to each other
mutulism a symbiotic relationship where both organisms benefit
commensalism a symbiotic relationship where one organism benefits and the other is neither helped nor harmed
parasitism a symbiotic relationship where one organism benefits and the other is harmed
Created by: carly.riddle