Bio Final (Exam 2)
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| population | all of a species in one location
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| population ecology | the study of how populations interact with each other and their environments
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| population density | the distribution of a population throughout a region
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| demography | quantitative study of populations
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| homeostasis | maintaining relatively stable internal conditions
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| survivorship curve | visual representation of the mortality rate across a lifetime
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| behavioral adaptation | a change in behavior that makes an organism better adapted to its environment
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| exponential growth | the way in which populations grow when there is no limit to their growth
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| ecological footprint | the amount of fertile land needed by one organism at their standard of life
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| population range | where a population lives
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| life table of a cohort | a table following a certain age group of a population from birth through death of the last one, showing fecundity and survival rates
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| fecundity | characteristic birth rate
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| spacing patterns of populations | random, grouped, uniform
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| random population spacing | occurs when there isn't much interaction
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| grouped population spacing | when one organism makes conditions more favorable for the others
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| uniform population spacing | occurs when there are factors such as competition or territories
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| carrying capacity (K) | the maximum population that an environment can support
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| semelparity | one big reproductive event followed by death
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| iteroparity | repeated mating events over multiple seasons
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| community | all of the species living in a certain area
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| community ecology | the study of how communities interact within, with each other, and with their environment
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| species richness | how many species there are in an area
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| keystone species | a species which exerts an unusually large influence on the surrounding community
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| primary productivity | the activity done by primary producers
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| succession | the growth or regrowth of a community
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| ecological niche | the specific role and place of a species
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| climax community | the final community that forms at the end of succession
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| predation | one species feeds on another
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| coevolution | when species cause each other to evolve by placing a strong selective pressure on them
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| competitive exclusion principle | if two species compete for a limited resource, the better adapted one will drive the other to extinction
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| cryptic coloration | camouflage to blend in
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| resource partitioning | if the resources are divided, two groups can survive in the same environment
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| mimicry | appearing like another organism to benefit from mistaken identity
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| character displacement | selection prefers those species which use untapped resources
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| commensalism | form of symbiosis in which one species benefits and the other isn't effected
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| symbiosis | when two organisms have a long term close interaction
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| primary successsion | from scratch
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| secondary succession | from something
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| ecosystem | all of the biotic and abiotic aspects of a place
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| ecosystem ecology | the study of how ecosystems interact with one another and the environment
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| primary producer | autotrophs which get energy directly from the enviroment
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| heterotroph | organisms which get energy from other organisms
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| trophic level | a way of measuring how far removed from the sun an organism is in terms of energy source
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| food chain | a linear progression of energy through trophic levels
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| pyramid of numbers | broken up by trophic level
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| pyramid of biomass | broken up by trophic level (can be inverted)
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| pyramid of energy | can't be inverted
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| energy flow diagrams | show the progression of energy
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| eutrophication | when large amounts of nutrients runoff into water, causing them to get choked with plants. As those plants die and decompose, the decomposing bacteria drain the oxygen from the water
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| herbivores | eat plants
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| carnivores | eat meat
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| ecology | the study of organisms and how they interact with each other and their environments
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| biome | a distinct region with similar weather conditions
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| greenhouse effect | certain gasses effectively trap solar radiation, warming the planet
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| tundra | biome characterized by cold, permafrost, and few trees or animals
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| coral reef | highly biodiverse sub-biome found in the shallow portion of the ocean
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| biomagnification | process by which a substance found in trace amounts in an organism at the bottom of the food chain builds up in organisms at the top of the chain
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| DDT | pesticide which made eggshells weak in birds of prey due to biomagnification
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| what two characteristics of a biome are most important | temperature and precipitation
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| what gasses are responsible for the greenhouse effect | CO2, methane, nitrous oxide
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| realized niche | place where a population actually lives
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| fundamental niche | area where a population could theoretically live
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| LOOK AT THE CYCLES | water, carbon, nitrogen, phosphorous
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| which cycle doesn't have a gaseous phase? | phosphorous
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| oligotrophic lakes | low nutrients and high oxygen
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| cost of reproduction | the reduction in future reproductive output as a consequence of current reproduction
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| why is nitrogen often a limiting resource? | most organisms can't use elemental nitrogen
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| interspecific competition | between multiple species
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| intraspecific competition | within one species
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
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