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32 Cards in this Set
- Front
- Back
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The earth is approximately ___ billion years old
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4.5
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Humans are only ______ years old
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500000
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The lithosphere is made up of plates called
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tectonic plates
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_______below the surface rises through cracks between the plates deep in the ocean floor
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liquid rock
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as liquid rock meets _______, the rock hardens and _______
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cool water, pushes the plates apart
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when plates shift ______ occur along the edges
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earthquakes
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when movements of the plates cause the lithosphere to buckle ___ form
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mountains
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breaking down of rocks by weather and water
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weathering
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broken down material is carried off
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erosion
-wind erosion -water erosion -sand erosion |
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a long period of cooling during which huge glaciers grow and extend from the polar regions
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ice age
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sea levels are ___ during the ice age
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lower
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evidence of at least ___ major ice ages in earths history
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5
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example of glacial erosion
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cape cod/ great lakes
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El nino occurs due to ___
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warm, nutrient poor water
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_____ and the earths _____ drive many of the daily/sensonal changes
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sunlight, rotation
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water vapor, carbon dioxide, sulfur gases
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ancient atmosphere
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combining water, cabon dioxide, and sunlight to produce food
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photosynthesis
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oxygen, carbon dioxide, water vapor, and nitrogen
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today
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almost all ____ comes from the sun
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energy
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sunlight -->____ --> animal --> higher animals
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plants, higher animals
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need to seek food, water, shelter and mates
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living space
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area claimed as a living space by an animal
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territory
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competition for ___ is an important process of evolution
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space and resources
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life process within the body slows down
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dormant
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dormancy in animals
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hibernation
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a group of organisms so similar to one another that they can breed and produce fertile offspring
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species
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specific enviroment a particular species lives (destruction of this = extinction)
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habitat
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total area in which a species can live
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geographical range
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all the members of a species that live in the same geographic area
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populations
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all the different populations that live and interact in the same area
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community
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includes all the communities in an area as weell as abiotic factors
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ecosystem
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the varied number of species in an ecosystem
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biodiversity
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