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BIO-114 Exam 1 Review Questions and Correct Answers
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Ecosystem the sum of all organisms living in a given area and the abiotic factors they interact with First law of thermodynamics energy cannot be created or destroyed, can only be transferred or transformed Second law of thermodynamics Every exchange of energy increases the entropy of the univers...

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  • August 11, 2024
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  • 2024/2025
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  • bio 114 exam 1 review questions and correct answer
  • ecosystem the sum of all organisms living in a gi
  • first law of thermodynamics energy cannot be crea

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BIO-114 Exam 1 Review Questions and
Correct Answers
Ecosystem ✅the sum of all organisms living in a given area and the abiotic factors
they interact with

First law of thermodynamics ✅energy cannot be created or destroyed, can only be
transferred or transformed

Second law of thermodynamics ✅Every exchange of energy increases the entropy of
the universe, meaning that energy can only flow through ecosystems instead of cycling
through them for a long time

law of conservation of mass ✅Matter cannot be created or destroyed just like energy

Primary producers ✅the trophic level that supports all others, this is made up of
photosynthetic organisms called autotrophs. these use light to create sugars, organic
compounds and oxygen. (plants)

Primary consumers ✅Herbivores, the organisms that eat the producers

Secondary consumers ✅carnivores, these eat the primary consumers (herbivores)

tertiary consumer ✅these are the carnivores that eat other carnivores, consuming the
secondary consumers

Detrivores/decomposers ✅consumers who get their energy from consuming detritus

detritus ✅organic matter that is not alive this includes dead organisms, feces, fallen
leaves, etc. These are usually prokaryotes and fungi

Primary production ✅the amount of light energy that autotrophs convert into chemical
energy

Gross primary production (GPP) ✅the amount of light that is converted into the
chemical energy used in organic molecules

Net primary production (NPP) ✅NPP=GPP-Ra this represents the amount of chemical
energy being stored in the ecosystem that can be used by consumers

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