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Science- KEY TERMS
Science
16 cards·by ecp
key terms
estimate
an approximation of a number based on reasonable assumptions
emigration
leaving a population
birth rate
the number of births in a population over a certain amount of time
death rate
the number of deaths in a population over a amount of time
carrying capacity
the largest population an area can support
limiting factor
an environmental factor that prevents a population from increasing
population density
the number of individuals in an area of specific size
organism
living thing
habitat
the specific environment that provides the things an organism needs to live, grow, and
reproduce
biotic factor
a living part of an organisms habitat
abiotic factor
a non-living part of an organisms habitat
photosynthesis
the process in which some organisms use water along with sunlight and carbon dioxide to make
their own food
species
a group of organisms that are physically similar and can mate with each other and reproduce
population
all the members of one species in a particular area
community
all the different populations that live together in an area
ecosystem
the community of organisms that live in a particular area, along with their non-living
surroundings