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41 Cards in this Set
- Front
- Back
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All the living and non living things sthat interact in a particular area
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ECOSYSTEM
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The pl;ace where an organism lives and that provide sthe things that the organism needs is?
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HABITATS
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What are the things that organisms need?
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food, water shelter, and things to grow & reproduce
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The living parts of an ecosystem is called ?
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BIOTIC FACTORS
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The nonliving parts of an ecosystem is called what?
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ABIOTIC
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yOUR BODY IS OVER ___% WATER?
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65%
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What is necessary for photosynthesis to produce food?
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SUNLIGHT
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What determines the type of organism that can live in an area?
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Temperature
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____ consists of vary types of minerals and quatity of minerals in different areas and determines the kinds of plants that grow
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SOIL
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All the memebers of one species in a particular area are called?
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POPULATION
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All the populations that live together in an area is called its?
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COMMUNITY
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Organisms belong to a _______.
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population
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Populations belongs to a ______.
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community
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Community and abiotic factors form an _______?
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ecosystem
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The study of how living things interact with one another and with their environment
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ECOLOGY
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The number of individuals that live in a specific area is called ?
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POPLULATION DENSITY
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What is the formula for population density?
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NUMBER OF INDIVIDUALS / UNIT AREA
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How do you determine the population size?
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direct observation
indirect observation sampling- count number in a certain area and then multiply estimate-approximate # based on reasonable assumptions |
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When trying to determine the population what is mark -and -recapture?
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Animals are marked and the released. then another group is captured. the number of marked animals in 2nd group is used to estimate the population size
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How do populations change?
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births and deaths
immigration Emigration |
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What is the number of births in a population in certain amount of time
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BIRTH RATE
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HOW DO YOU FIGURE Death RATE?
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the number of deaths in a population in a certain amount of time.
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Moving into an area is called ?
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IMMIGRATION
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Moving out of an area is called?
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EMMIGRATION
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What are limiting factors in an environment?
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factors that prevent a population from increasing
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The largest population that an environment can support is called its ______ _______.
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CARRYING CAPACITY
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____ is a limiting factor for plants due to soil and sun light needs.
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SPACE
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________ nees are a limiting factor for animals.
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territory
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Severe changes in _____ & ______ can limit population that would normally survive in an area
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WEATHER AND TEMPERATURES
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What is an organism's NICHE?
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its particular role
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The struggle between organisms to survive in a habitat with limited resources is called?
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COMPETITION
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When one organism hunts and kills another food, it is called?
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PREDATION
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_____ IS THE ORGANISM THAT'S CAUGHT.
_____ IS THE ORGANISM THAT DOES THE KILLING. |
PREY
PREDATOR |
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Both prey and predators _____ to help them live.
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ADAPT
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The relationship between two species that benefits at least one of the species is called?
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SYMBIOSIS
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When both species benefit from a relationship, it is called?
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mutualism
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When on species benefits but the other is neither helped or harmed, it is called?
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COMMENSALISM
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When one organism lives off of or inside another causing it harm, it is called what?
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PARASITISM
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The organ that benefits from living off of something is called?
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PARASITE
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HOST IS ?
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The organism the parasite live in or on
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Make sure you understand the Prairie Ecosystem and
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the Pheasant population graph
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