Ecology Unit Test Review

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Ecology Unit Test Review
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Are plants producers or consumers?
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Producers
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Organisms that eat only plants are called?
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Herbivores
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Is soil type abiotic or biotic?
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Abiotic
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Organisms that live in the same area live in the
same ___________
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Habitat
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Organisms that share the same job share the same
________
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Niche
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Which has the highest population density?1
chicken 2 goats 6 cows 12 pigs (all living on
the same farm)
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12 pigs
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Animals that travel in herds are what type of
dispersion pattern?
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Clumped
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If an organism emigrates from an area this
means.
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They exit/leave that area
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What is the reproductive strategy of a rat?
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R-strategy
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What characteristics are typical of k-strategy
reproduction?
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Produces few offspring, pregnant for a long
time, lengthy prenatal care
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What will happen if a population exceeds
carrying capacity?
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The death rate will increase
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Name a density- dependent limiting factor.
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PredationParasitismCompetitionDisease
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Name a density- independent limiting factor.
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WeatherNatural DisastersHuman Activities
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Type of symbiotic relationship where both
organisms benefit?
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Mutualism
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Type of symbiotic relationship where one
organism benefits the other is neither helped
nor harmed.
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Commensalism
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Type of symbiotic relationship where one
benefits and the other is hurt.
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Parasitism
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As we move up the tropic levels how much energy
is lost as heat at each level?
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90
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What is the ultimate source of energy for the
food pyramid?
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Sunlight
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What eats the Producer in a food chain?
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Primary Consumer
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Organisms with overlapping niches probably have
which type of relationship?
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Competitive
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Describe Nitrogen Fixation.
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Bacteria take nitrogen from the air and fix it
so it can be used by plants.
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True of FalseNutrients are recylced
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True.(Energy is not)
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Which of the following is a renewable
resource?A. WoodB. Natural GasC. Uranium
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A. Wood
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After a forest fire what type of succession is
most likely to occur?
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Secondary Succession
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What is the biggest difference between primary
and secondary succession?
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Presence of Soil
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What is an endangered species?
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A group of organisms in danger of extinction.
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What can gasses trapped in the atmosphere do to
the temperature of the earth?
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Warm it.
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Why is the ozone beneficial to Earth?
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It acts as a protective shield.
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The relatively stable mature stage of plants and
animals that results from succession is called?
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A climax community
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When certain pollutants in the air combine with
water what type of rain is formed?
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Acid Rain
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How have humans impacted the carbon cycle?
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Increased the amount of carbon dioxide in the
atmosphere
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What is the best process to clean up oil spills?
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bioremediation
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An organism that moves to an area by accident or
on purpose, but is not native to that area is an
example of?
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An introduced species.