What determines the carrying capacity of an environment

*a graphical illustration that shows the distribution of various age groups in a population (typically that of a country or region of the world), which forms the shape of a pyramid when the population is growing.

Diminishing population: shows population that are elderly & shrinking

Stable population: shows population that are not growing

Population Test/w Pics

Population Test/w Pics | Quizalize

49 questions

the replacement of one type of community by another at a single location over a period of time

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All the living organisms that inhabit an environment

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Parts of an ecosystem that have never been living

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An interaction between two organisms in which one organism, the predator, kills and feeds on other organisms, the prey.

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in a predator-prey relationship, it is the organism that feeds upon the other.

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An organism that is killed and eaten by another organism

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Members of a species in a specific area

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geographic distribution

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https://o.quizlet.com/KNjVPrfO4.IOZ1iwUSnztw_m.jpg

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Maximum number of organisms of a species that can be supported in an environment without damaging the habitat

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Limiting resources

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when it consumes a particular natural resource at the same rate at which the ecosystem produces the resources

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*Number of individual organisms per unit of space

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https://farm4.staticflickr.com/3247/2979574719_96e701fba0_m.jpg

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Numbers and composition of the population

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movement of individuals into a population

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movement of individuals out of a population

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any biotic or abiotic factor that restricts the existence of organisms in a specific environment.

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These are factors that affect the size of the population because there are so many individuals in the population.

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https://o.quizlet.com/HirSFeYhiS-0zXAXkSmZNA_m.png

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Things that affect the number of individuals in a population, regardless of the density. These are things like natural disasters, and human activity

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birth rate minus death rate

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Interaction among organisms that vie for the same resource in an ecosystem

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Fox and Coyote are predators of same prey

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a relationship in which one organism benefits while the other neither benefits nor is harmed

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the relationship between certain orchids and trees. the orchid grows around the trees branches without harming the tree.

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A relationship between two species in which both species benefit.

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Yucca moth pollinates and lays eggs on yucca flowers; moth larvae spread yucca seeds

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The relationship between the parasite and it's host

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A relationship in which two different organisms live in close association with each other (long period)

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*Percentage of the population (or number of people of each sex) at each age level in a population.

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the spacial distribution of the individuals within the population

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is the most common type of dispersion found in nature

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Species that live in a random pattern; improves access to mates & food, protection

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"Evenly spread" organisms, ex. Eels

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Clumped: live in groups

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Expanding population: very wide at younger age, high birth rates, low life expectancy.

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An organism's particular role in an ecosystem, or how it makes its living within a habitat

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