Bio182 NAU Exam 1 2025 Questions and
Answers 100% Pass
What is TFR and how does it influence the predictions on future human
population? - ANSWER-Total Fertility Rate:
Average number of live births a woman has during her lifetime
Shows population growth
What are the 4 main human caused factors to the loss of biodiversity? - ANSWER-
Habitat Destruction, Invasive Species, Pollution, Overexploitation
What is Biomagnification? - ANSWER-Tendency of certain chemicals to
accumulate or build up within food chains
What is the other name for the global water cycle? - ANSWER-Hydrological cycle
Where does most of the water that reaches the atmosphere come from? -
ANSWER-Evaporation and transpiration
How have humans influenced the water cycle? - ANSWER-Hydroelectric dams,
tapping aquifers, deforestation
Estuaries, losing evapotranspiration
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, What are the 3 main biogeochemical cycles we discussed? - ANSWER-Carbon,
Phosphorus, and Nitrogen
What is the definition of a community? - ANSWER-Assemblage of many
populations that live in the same place at the same time
What is Species richness? - ANSWER-Number of different species in each
community
What is Species Diversity? - ANSWER-The variety of species that make up the
community
What is the difference between Species Diversity and Richness? - ANSWER-
Species diversity has more abundance/evenness
What is the role of metagenomics in helping estimates species diversity? What
types of organisms does it really help this task for? - ANSWER-Finding diversity
of microorganisms
Collecting microbial genomes
Using cultures
Explain the intermediate-disturbance hypothesis - ANSWER-Highest number of
species are maintained in communities with intermediate levels of disturbance
What are disturbances? Be able to give some examples - ANSWER-Droughts,
fires, hurricanes
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
Answers 100% Pass
What is TFR and how does it influence the predictions on future human
population? - ANSWER-Total Fertility Rate:
Average number of live births a woman has during her lifetime
Shows population growth
What are the 4 main human caused factors to the loss of biodiversity? - ANSWER-
Habitat Destruction, Invasive Species, Pollution, Overexploitation
What is Biomagnification? - ANSWER-Tendency of certain chemicals to
accumulate or build up within food chains
What is the other name for the global water cycle? - ANSWER-Hydrological cycle
Where does most of the water that reaches the atmosphere come from? -
ANSWER-Evaporation and transpiration
How have humans influenced the water cycle? - ANSWER-Hydroelectric dams,
tapping aquifers, deforestation
Estuaries, losing evapotranspiration
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 1
, What are the 3 main biogeochemical cycles we discussed? - ANSWER-Carbon,
Phosphorus, and Nitrogen
What is the definition of a community? - ANSWER-Assemblage of many
populations that live in the same place at the same time
What is Species richness? - ANSWER-Number of different species in each
community
What is Species Diversity? - ANSWER-The variety of species that make up the
community
What is the difference between Species Diversity and Richness? - ANSWER-
Species diversity has more abundance/evenness
What is the role of metagenomics in helping estimates species diversity? What
types of organisms does it really help this task for? - ANSWER-Finding diversity
of microorganisms
Collecting microbial genomes
Using cultures
Explain the intermediate-disturbance hypothesis - ANSWER-Highest number of
species are maintained in communities with intermediate levels of disturbance
What are disturbances? Be able to give some examples - ANSWER-Droughts,
fires, hurricanes
COPYRIGHT ©️ 2025 ALL RIGHTS RESERVED...TRUSTED & VERIFIED 2
