What process re-establishes climax communities after a major disruption in the environment?
a. Progression
b. Carrying capacity
c. Desiccation
d. Succession
ANS: D
Disruption can occur from any external forces including violent storms, changes in current patterns, or
an influx of pollutants. This makes the environment hostile to original species in the community.
Succession is the recolonization of a few highly tolerant species into the area. Information can be
found in the section Marine Communities Change as Time Passes.
You might also like to view...
Desertification is ________
A) a natural process of succession that cycles from deserts to prairies to forests to deserts B) the formation of dryland ecosystems in regions where temperatures have increased C) often the result of overgrazing and drought D) the natural movement of deserts advancing into new regions due to shifts in wind direction
Which of the following describes the mixing ratio?
A. It changes with temperature. B. It is expressed in grams of water vapour per kilogram of dry air. C. It increases with the increase of a given volume of air. D. It is a relative measure of water vapour.
According to the Koeppen system, an A climate is one in which
A) potential evaporation exceeds precipitation. B) the average temperature for all months is greater than 18 degrees C. C) the coldest month of the year has an average temperature higher than -3 degrees C, but below 18 degrees C. D) all months have mean temperatures below 10 degrees C.
A large body of air that is characterized by a homogeneity of temperature and moisture at any given level is a(n) ________
Fill in the blank(s) with correct word