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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