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Definition
any living thing
ex: 1 zebra |
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group of same species living in the same area at the same time
ex: 10,000 zebra |
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Definition
all of the interacting populations within an area
ex: all of the zebra, all of the lions, all of the grasses, all of the snakes, all of the bacteria, all of the earthworms |
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Definition
grouping of organisms living together and interacting with each other and the environment around them
ex: pond, rainforest, woods, parking lot |
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Definition
is a permanent relationship between two different types of organisms
3 types: mutualism, parasitism, commensalism |
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Definition
both organisms benefit from one another
+ +
ex: sea anemone and clown fish |
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Definition
one organism benefits and the other is neither helped nor harmed
+ 0
ex: pilot fish and shark
ex: orchids that live in plants |
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Definition
one organism benefits and the other is harmed
+ -
ex: tapeworm and human |
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Definition
larger animal that feeds on weaker animal
ex: lion |
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Definition
weaker animal that gets killed and eaten
ex: zebra |
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Term
| A spider and fly would have what kind of relationship |
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Definition
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| Some species of shark allow small fish to enter their mouths without eating them. Inside the mouth, the small fish feed on debris around the teeth. The sharks get their teeth cleaned, which reduces the risk of decay and infection. What is this called? |
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Definition
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Term
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Definition
physical or nonliving factors
ex: light, temperature, air, amount of precipitation |
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Definition
biological factors or living factors
ex: disease, predators, prey, competition, symbiosis |
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Definition
environmental factors that limit the size of a population
ex: availability of water, oxygen, food, sunlight, relationship with other organisms and the ability to remove waste |
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Term
| density-dependent factors |
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Definition
factors that limit the growth of a population when that population is of a particular size.
ex: competition and predation |
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| density - independent factors |
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Definition
factors that limit the growth of a population regardless of its size
ex: climatic events, such as extreme cold or heat, tidal waves, volcanoes, flooding, or drought |
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Definition
| largest population that a given environment can support over a long period of time |
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Definition
| is the use of techniques such as sampling and quadrate studies to determine the species diversity and to monitor changes in an ecosystem over time |
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| Living corals can be found near the surface of the ocean water in some warm regions of the world. The corals provide a home for algae. The algae in turn, produce food that is used for the corals. What is a biotic factor in this ecosystem? |
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Definition
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| Out of the four wordes below, which is a density-dependent limitatin on population growth: wildlife, competition, unlimited nutrients, severe drought |
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