2025/2026 Update | 100% Correct Latest
Question 1
Which characteristic tends to decrease diversity?
a. environmental stress
b. physically diverse habitat
c. moderate amounts of disturbance
d. evolution
Correct Answer
a. environmental stress
Question 2
All of the following are examples of "a commons" EXCEPT:
a. International ocean fisheries
b. The shopping mall
c. Most of the continent of Antarctica
d. National forests
Correct Answer
b. The shopping mall
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,Question 3
predation
Correct Answer
predator capture, kill, and consume other animals (prey), several feeding strategies
can drive population dynamics
predator-prey population cycles
ex: high prey abundance leads to growth of the predator
Question 4
generalist
Correct Answer
have broad niches, advantage when environmental condition change
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,Question 5
Primary Consumers
Correct Answer
second trophic level
herbivores
organisms that feed on autotrophs
heterotrophs ("other-nourishing")
cannot make their own organic compounds and must feed on other living things
Question 6
water supply depends on several factors in the hydrologic cycle
Correct Answer
rates of precipitation, evaporation, transpiration, stream flow, subsurface flow
Question 7
how do earlier successional species affect what happens later in succession?
Correct Answer
facilitation, interference, life history differences
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, Question 8
main types of climate change mitigation:
Correct Answer
reduce emissions, remove CO2 from the atmosphere (geo-engineering), carbon capture and storage, block sunlight (geo-
engineering)
Question 9
primary succession
Correct Answer
communities are built from scratch
establishment and development of an ecosystem where one did not previously exist (lava flow, edge of retreating glacier)
Question 10
Which of the following is incorrectly paired?
a. species dominance: the most aggressive species
b. habitat diversity: the different kinds of habitats in a given unit area
c. genetic diversity: the total number of genetic characteristics
d. species richness: the total number of species
Correct Answer
a. species dominance: the most aggressive species
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