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Chapter 46: Q. 14 (page 1369)
Organisms that can make their own food using inorganic molecules are called: a. autotrophs b. heterotrophs c. photoautotrophs d. chemoautotrophs
The correct option is d. chemoautotrophs .
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Which of the following approaches would be the most effective way to reduce greenhouse carbon dioxide?
a. Increase waste deposition into the deep ocean.
b. Plant more environmentally-suitable plants.
c. Increase use of fuel sources that do not produce carbon dioxide as a by-product.
d. Decrease livestock agriculture
The average time a molecule spends in its reservoir is known as
. residence time
. restriction time
. resilience timed
. storage time
The loss of an apex consumer would impact which trophic level of a food web? a. primary producers b. primary consumers c. secondary consumers d. all of the above .
A re-created ecosystem in a laboratory environment is known as a ________. a. mesocosm b. simulation c. microcosm d. reproduction
Pyramids depicting the number of organisms or biomass may be inverted, upright, or even diamond-shaped. Energy pyramids, however, are always upright. Why?
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