A small group of mice were released on an island. The island previously had no mice on it, but had abundant food and no predators. After several years of growth, the size of the new island population stabilizes. However, at this point a hurricane drastically reduces the population. How would you describe the situation?
A. The biotic potential of the population has been reduced.
B. The new population size is a result of density-dependent regulation.
C. The new population size is a result of density-independent regulation.
D. The island mouse population can now act as a sink metapopulation.
E. The island mouse population can now act as a source metapopulation.
Clarify question:
What is the key concept addressed by the question?
What type of thinking is required?
Gather Content:
What do you already know about natural event affecting a population? What other information is related to the question?
Choose Answer:
Given what you now know, what information is most likely to produce the correct answer?
Reflection on Process:
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
C. The new population size is a result of density-independent regulation.
Clarify question:
What is the key concept addressed by the question?
The key concept is the impact of a natural event on a population of mice.
What type of thinking is required?
This is an analyze question, you will need to break the question down into its components to determine the answer. You will need to determine how a hurricane effects a population of mice on an island.
Gather Content:
What do you already know about natural event affecting a population? What other information is related to the question? Metapopulations are a group of small semi-isolated populations spread across an area. Density-dependent effects are changed by the population size whereas density-independent processes are not effect by the population size.
Choose Answer:
Given what you now know, what information is most likely to produce the correct answer?
The hurricane is independent of the size of the mouse population; it is an example of a density-independent process.
Reflection on Process:
Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
You need to break down the question into all its components to determine the correct answer. Were you able to analyze each situation and determine what type of impact the hurricane had on the mouse population, knowing that the population size had no influence on the results of this natural disaster?
You might also like to view...
The ubiquitin-proteasome pathway
_____ is used to regulate expression of a number of cell surface receptors. _____ requires only one molecule of ATP to target a protein. _____ targets proteins in a stepwise fashion via ubiquitin ligase adding ubiquitin residues to the protein. _____ is used to digest macromolecules. _____ does not destroy the ubiquitin moiety, but rather cleaves it off for reuse.
Which of the following are often involved in captive breeding programs and education?
a. The Nature Conservancy b. The formation of protected nature preserves c. National parks d. Zoos
The atmospheric pressure on top of Mt. Everest is only about 238 mmHg, so the approximate partial pressure of oxygen there is
A. 50 mmHg. B. 476 mmHg. C. 186 mmHg. D. 238 mmHg. E. 2.4 mmHg.
_______ describes a chromosome that has a centrally-placed centromere. Fill in the blank(s) with the appropriate word(s)