[简答题]种群(population)

[简答题]种群动态

[名词解释]集合种群

[判断题]当生物种群数量达到高峰时，由于种群压力增加，种群数量会趋于下降。这是自然对生物种群的调节。( )

[填空题]新种群也可能是起源于一个占有单一生境的种群，或者说是起源于一个种群的分布区域内，这种类型的种群形成叫做______形成。

[简答题]种群增长类型

[判断题]种群内调节的结果能够使种群趋于稳定，因此种群内的个体之间没有差异。( )

[简答题]
1 Population ecology is the science that measures changes in population size and composition and identifies the causes of these fluctuations．Population ecology is not concerned solely with the human population．In ecological terms．a population consists of the individuals of one species that simultaneously occupy the same general area．rely on the same resources, and are affected by similar environmental factors．The characteristics of a population are shaped by its size and by the interactions among individuals and between individuals and their environment．
2 Population size is a balance between factors that increase numbers and factors that decrease numbers．Some factors that increase populations are favorable light and temperature，adequate food supply, suitable habitat, ability to compete for resources, and ability to adapt to environmental change．Factors that decrease populations are insufficient or excess

[单项选择]
1 Population ecology is the science that measures changes in population size and composition and identifies the causes of these fluctuations．Population ecology is not concerned solely with the human population．In ecological terms．a population consists of the individuals of one species that simultaneously occupy the same general area．rely on the same resources, and are affected by similar environmental factors．The characteristics of a population are shaped by its size and by the interactions among individuals and between individuals and their environment．
2 Population size is a balance between factors that increase numbers and factors that decrease numbers．Some factors that increase populations are favorable light and temperature，adequate food supply, suitable habitat, ability to compete for resources, and ability to adapt to environmental change．Factors that decrease populations are insufficient or excessive
A. The distribution of food in a given area
B. The number of nests in a given area
C. The number of births in a given period of time
D. The number of individuals counted in a given area