Multiple Choice
Which condition in an ecosystem would be considered a disturbance, as opposed to a stress?
A) Low temperatures prevent reproduction of a plant.
B) High temperatures increase death rates of young fish.
C) Decreased food resources cause increased competition among small mammals.
D) A chemical pollutant disrupts reproductive cycles in fish.
E) A major flood covers a large floodplain area with water and sediment, killing plants.
Correct Answer:

Verified
Correct Answer:
Verified
Q191: In the Shannon index, the mathematical calculation
Q192: An ecologist constructs a diagram to describe
Q193: Dryas and alders in Glacier Bay, and
Q194: Charles Darwin observed the following interactions among
Q195: A community ecologist is studying all the
Q197: In a pasture, several types of animals
Q198: Goldenrod and thistles exude chemicals from their
Q199: Which factor is characteristic of disturbances within
Q200: During the process of succession, early species
Q201: The figure shows 200 years of succession