ENVS 1126 LSU FINAL EXAM DOERING
EXAM WITH CORRECT QUESTIONS
AND ANSWERS 2025
Which of the following is a species?
a. fish community
b. Homo sapiens
c. liger
d. tropical rainforest - CORRECT-ANSWERSb. Homo sapiens
The 3 types of capital that determine a nation's wealth are ___, ___, and ___.
a. produced, natural, and intangible
b. produced, tangible, and domestic
c. gross, domestic, and produced
d. domestic, tangible, and natural - CORRECT-ANSWERSa. produced, natural, and intangible
Nitrogen gas (N2) in air is unavailable to plants and therefore they rely on
a. Rain runoffs.
b. Fossil fuel combustion.
c. Nitrogen-fixation in the soil.
,d. Denitrification in the soil. - CORRECT-ANSWERSc. Nitrogen-fixation in the soil.
Which example of a community interaction represents a type of predation?
a. A small barnacle adheres itself to the body of a whale to hitch a ride.
b. A non-parasitic moss grows on the trunk of a tree.
c. A honeybee feeds on nectar in a flower and pollinates the flower.
d. A large herd of zebra graze on savannah grasses and shrubs. - CORRECT-ANSWERSd. A
large herd of zebra graze on savannah grasses and shrubs.
Inter-generational equity means:
a. Valuing something beyond its monetary value to humans.
b. Technological innovations will always be a substitute for natural systems.
c. Making possible for others today what is possible for you now.
d. Making possible for future generations what is possible for us today. - CORRECT-
ANSWERSd. Making possible for future generations what is possible for us today.
The highest levels of biodiversity are found in
a.biodiversity hotspots.
b.aquatic biomes.
c.habitats undergoing ecological succession.
,d.terrestrial biomes. - CORRECT-ANSWERSa.biodiversity hotspots.
Which is not a form of habitat loss?
a.Conversion
b.Potentiation
c.Simplification
d.Intrusion - CORRECT-ANSWERSb.Potentiation
A food chain describes the movement of
a.energy and nutrients.
b.oxygen and carbon dioxide.
c.animals and plants.
d.ecosystem services. - CORRECT-ANSWERSa.energy and nutrients.
Energy for almost all ecosystems originates from the
a.hydrosphere.
b.lithosphere.
c.atmosphere.
d.sun. - CORRECT-ANSWERSd.sun.
, Decomposers are organisms that feed on
a. another living plant or animal over an extended period of time.
b. inorganic material.
c. producers.
d. dead organic material. - CORRECT-ANSWERSd. dead organic material.
Most primary production in aquatic ecosystems is performed by
a. phytoplankton.
b. mangroves.
c. zooplankton.
d. bacteria. - CORRECT-ANSWERSa. phytoplankton.
The main difference between primary and secondary succession is that
a. primary succession does not involve mosses.
b. secondary succession begins with pre-existing soil.
c. primary succession begins with pre-existing plants.
d. secondary succession begins with lichens. - CORRECT-ANSWERSb. secondary succession
begins with pre-existing soil.
EXAM WITH CORRECT QUESTIONS
AND ANSWERS 2025
Which of the following is a species?
a. fish community
b. Homo sapiens
c. liger
d. tropical rainforest - CORRECT-ANSWERSb. Homo sapiens
The 3 types of capital that determine a nation's wealth are ___, ___, and ___.
a. produced, natural, and intangible
b. produced, tangible, and domestic
c. gross, domestic, and produced
d. domestic, tangible, and natural - CORRECT-ANSWERSa. produced, natural, and intangible
Nitrogen gas (N2) in air is unavailable to plants and therefore they rely on
a. Rain runoffs.
b. Fossil fuel combustion.
c. Nitrogen-fixation in the soil.
,d. Denitrification in the soil. - CORRECT-ANSWERSc. Nitrogen-fixation in the soil.
Which example of a community interaction represents a type of predation?
a. A small barnacle adheres itself to the body of a whale to hitch a ride.
b. A non-parasitic moss grows on the trunk of a tree.
c. A honeybee feeds on nectar in a flower and pollinates the flower.
d. A large herd of zebra graze on savannah grasses and shrubs. - CORRECT-ANSWERSd. A
large herd of zebra graze on savannah grasses and shrubs.
Inter-generational equity means:
a. Valuing something beyond its monetary value to humans.
b. Technological innovations will always be a substitute for natural systems.
c. Making possible for others today what is possible for you now.
d. Making possible for future generations what is possible for us today. - CORRECT-
ANSWERSd. Making possible for future generations what is possible for us today.
The highest levels of biodiversity are found in
a.biodiversity hotspots.
b.aquatic biomes.
c.habitats undergoing ecological succession.
,d.terrestrial biomes. - CORRECT-ANSWERSa.biodiversity hotspots.
Which is not a form of habitat loss?
a.Conversion
b.Potentiation
c.Simplification
d.Intrusion - CORRECT-ANSWERSb.Potentiation
A food chain describes the movement of
a.energy and nutrients.
b.oxygen and carbon dioxide.
c.animals and plants.
d.ecosystem services. - CORRECT-ANSWERSa.energy and nutrients.
Energy for almost all ecosystems originates from the
a.hydrosphere.
b.lithosphere.
c.atmosphere.
d.sun. - CORRECT-ANSWERSd.sun.
, Decomposers are organisms that feed on
a. another living plant or animal over an extended period of time.
b. inorganic material.
c. producers.
d. dead organic material. - CORRECT-ANSWERSd. dead organic material.
Most primary production in aquatic ecosystems is performed by
a. phytoplankton.
b. mangroves.
c. zooplankton.
d. bacteria. - CORRECT-ANSWERSa. phytoplankton.
The main difference between primary and secondary succession is that
a. primary succession does not involve mosses.
b. secondary succession begins with pre-existing soil.
c. primary succession begins with pre-existing plants.
d. secondary succession begins with lichens. - CORRECT-ANSWERSb. secondary succession
begins with pre-existing soil.
