更多"The majority of the population live"的相关试题:
[填空题]The majority of the population lives in noisy massive tower blocks. Cities
can be frightened places. The sense of belonging to a community tends to dis- (56)______
appear when you live thirty floors up in a skyscraper. Strange enough, whereas (57)______
in the past the inhabitants of one street all knew each other, nowadays people
on the same floor in tower blocks even say hello to each other. Country life, (58)______
on the other hand, differs from this kind of isolated existence in that a sense
of community generally keep the in-habitants of a small village together. (59)______
People have the advantage of knowing that there is always someone to turn to
when they need help. So country life has disadvantages too. For example, (60)______
shopping becomes a major problem and for something slightly out of the ordi- (61)______
nary you have to go for an expedition to the nearest large town. The country (62)______
has the adv
[简答题]
POPULATION ECOLOGY
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]
POPULATION ECOLOGY
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. territory
B. control
C. history
D. shelter
