Life Science: Question Preview (ID: 1819)

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Photosynthsis and respiration belong to which cycle?
a) Nitrogen cycle b) Carbon cycle c) Phosphorus cycle d) Hydrologic cycle
The part of the Earth in which all living things exits is called the
a) Bionight b) Community c) Ecosystem d) Biosphere
An organism that cannot make its own food is called
a) heterotroph b) chemotroph c) autoroph d) producer
Organisms that are diurnal
a) hibernate every other year b) live two seperate lives c) are only active during the day d) live in two different place throughout the year
All of the members of a particular species that live in one area are called a(an)
a) biome b) population c) community d) ecosystem
An ecosystem contains
a) only the biotic components of the environment b) only the abiotic components of the environment c) only the energy flow components of an environment d) both the living organisms and the abiotic components of the environment
The algae at the beginning of the food chain are
a) consumers b) decomposers c) producers d) heterotrophs
Process by which atmospheric nitrogen gas is changed to forms that plants can use is
a) bioegeochemical fixation b) hydrologic fixation c) nitrogen fixation d) carbon fixation
Carbon cycles through the biosphere in all of the following processes EXECPT
a) photosynthesis b) transpiration c) respiration d) decomposition
The atmosphere contains _______________ which is neded for photosynethisis.
a) nitrogen b) oxygen c) carbon dioxide d) none of the above
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