[单项选择]

SOCIAL BEHAVIOR IN ANIMALS

1 Social behavior is communication that permits a group of animals of the same species to become organized cooperatively. Social behavior includes any interaction that is a consequence of one animal’s response to another of its own species, such as an individual fighting to defend a territory. However, not all aggregations of animals are social. Clusters of moths attracted to a light at night or trout gathering in the coolest pool of a stream are groupings of animals responding to environmental signals. Social aggregations, on the other hand, depend on signals from the animals themselves, which stay together and do things together by influencing one another.
2 Social animals are not all social to the same degree. Some species cooperate only long enough to achieve reproduction, while others--such as geese and beavers--form strong pair bonds that last a lifetime. The most persistent social bonds usu
A. a bird fighting to defend its territory
B. a group of turtles sunning on a log
C. musk oxen forming a defensive circle
D. a pack of wolves hunting together

[单项选择]

SOCIAL BEHAVIOR IN ANIMALS

1 Social behavior is communication that permits a group of animals of the same species to become organized cooperatively. Social behavior includes any interaction that is a consequence of one animal’s response to another of its own species, such as an individual fighting to defend a territory. However, not all aggregations of animals are social. Clusters of moths attracted to a light at night or trout gathering in the coolest pool of a stream are groupings of animals responding to environmental signals. Social aggregations, on the other hand, depend on signals from the animals themselves, which stay together and do things together by influencing one another.
2 Social animals are not all social to the same degree. Some species cooperate only long enough to achieve reproduction, while others--such as geese and beavers--form strong pair bonds that last a lifetime. The most persistent social bonds usu
A. To show how social behavior benefits each individual in a group
B. To point out the role of the environment in social organization
C. To give examples of groupings that do not represent social behavior
D. To explain how not all social behavior has the same purpose

[填空题]The behavior of animals is" automatic" or "instinctive" because animals cannot think.

[单项选择] Dogs are social animals and without proper training, they will behave like wild animals. They will soil your house, destroy your belongings, bark excessively, fight other dogs and even bite you. Nearly all behavior problems are perfectly normal dog activities that occur at the wrong time or place or are directed at the wrong thing. The key to preventing or treating behavior problems is learning to teach the dog to redirect its normal behavior to outlets that are acceptable in the domestic setting. One of the best things you earl do for your dog and yourself is to obedience train (驯服) it. Obedience training doesn’’t solve all behavior problems, but it is the foundation for solving just about any problem. Training opens up a line of communication between you and your dog. Effective communication is necessary to instruct your dog about what you want it to do. Training is also an easy way to establish the social rank order. When your dog obeys a simple request of "come here,
A. worsen in modem society
B. occur when they go wild
C. be just part of their nature
D. present a threat to the community