Marking recapture sampling is a technique used to estimate population sizes of the following except ________
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Which of the following factors in an ecosystem is biotic? ______
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Detritus food chain starts from ________
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All of the following are examples of environmental resistance EXCEPT ________.
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Which gas is primarily
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On earth, energy enters ecosystems as ________.
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An ecological "niche" can be defined as ________.
A. the inorganic, nonliving aspects of a given area
B. the specific environment an organism inhabits
C. the various habitats an organism may inhabit
D. the role an organism plays in its community
Answer: B
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Which one of the following is not done in a habitat study? ______
A. The frequency of plants is studied using a quadrat.
B.
C. Record the wind direction and soil temperature.
D. Leaves of some plants are collected and studied.
Answer: B
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What is a habitat? ______
A. A place where animals and plants live
B. Something you do that may not be good for you
C. A group of animals
D. Number of organisms in an area
Answer: A
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Why is some energy always lost as it passes through the trophic levels (e.g. Primary producer ----> Herbivore ----> Carnivore)? ______
A. The digestion of food requires energy
B. Not all of the food consumed is digested
C. both a and b
D. Chemical reactions produce heat that cannot be used
Answer: D
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