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30 Cards in this Set
- Front
- Back
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Benefit of an animal society - division of
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Labor
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Benefit of an animal society - increased ability to find a
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Mate
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Negative of an animal society - increased competition for
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Resources
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Negative of an animal society - increased risk to spread
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Disease
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Negative of an animal society - increased risk to being spotted by
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`predators
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Ecology is the study of organisms interacting with each other and their
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Environment
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Population is all members of a species living in an
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Area
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Community is all the interacting species living in an
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Area
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An ecosystem is all the communities within a defined area, along with the non-living
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Environment (soil & water)
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Clumped distribution are populations that live together in
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Groups (like herds and packs)
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Uniform distribution is when individuals are evenly spread in an
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Area
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Uniform distribution occurs in large territories to protect scarce
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Resources
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Random distribution is where there is no predictable
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Pattern
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The number of births, deaths and migrations determines
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Population growth
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Immigrants are animals coming
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In
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Emigrants are animals going
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Out
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Formulate for growth is
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(births - deaths) + (immigrants - emigrants) = population size
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Growth of population depends on age of first production, frequency of production, average # of offspring at each birth and length of reproductive lifespan… aka the reproductive
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Patterns
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Biotic potential is the maximum rate at which a population can
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Increase
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Environmental resistance are limits to population growth set by the
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Environment
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Some populations, like insects, exhibit boom and bust
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Cycles
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The carrying capacity is the maximum population size an ecosystem can carry
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Indefinitely
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Density-independent factors such as natural disasters act to limit
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Population growth
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Density-dependent factors such as disease and competition also limit
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Population growth
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The development of fire, tools, shelter, clothing and weapons have allowed humans to survive
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Longer
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Agriculture has replaced the ____/_____ lifestyle
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Hunter/gatherer
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Modern medical care has increased life
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Span
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Growth is slower in
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Developed countries
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Growth is faster in
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Developing countries
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Replacement level fertility is when a country produces just enough children to maintain
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Population
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