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Allelomimetic behavior may be defined as behavior in which two or more indiv
Allelomimetic behavior may be defined as behavior in which two or more indiv
游客
2023-09-02
15
管理
问题
Allelomimetic behavior may be defined as behavior in which two or more individual animals do the same thing, with some degree of mutual simulation and coordination. It can only involve in species with sense organs that are well enough developed so that continuous sensory contact can be maintained. It is found primarily in vertebrates(脊椎动物), in those species that are diurnal, and usually in those that spend much of their lives in the air, in open water or on open plains.
In birds, allelomimetic behavior is the rule rather than the exception, though it may occasionally be limited to particular seasons of the year as it is in the red wing blackbird. Its principal function is that of providing safety from predators(掠食者), partly because the flock can rely on many pairs of eyes to watch for enemies, and partly because if one bird reacts to danger, the whole flock is warned.
Among mammals, allelomimetic behavior is very rare in rodents(啮齿动物), which almost never move in flocks or herds. Even when they are artificially crowded together, they do not conform in their movements. On the other hand, such behavior is a major system among large-hoofed mammals, such as sheep.
In the pack-hunting carnivores(食肉类飞禽),allelomimetic behavior has another function of cooperative hunting for large prey(被捕食者) animals, such as moose. Wolves also defend their dens as a group against larger predators, such as bears.
Finally, allelomimetic behavior is highly developed among most primate groups, where it has the principal function of providing warning against predators, as though combined defensive behavior is also seen in troops of baboons(狒狒).
选项
A、value of allelomimetic behavior in vertebrate and invertebrate species
B、definition and distribution of allelomimetic behavior
C、relationship of allelomimetie behavior to the survival of the fittest
D、personality factors that determine when an individual animal will show allelomimetic behavior
答案
B
解析
此题考查学生掌握文章主旨的能力。主题是什么?要回答这个问题首先要弄明白短文的主要内容;什么叫遗传模仿行为,定义是什么,情况怎样,有哪些例证,根据本题要求,B遗传模仿行为的定义和分布,可在短文的第一段中找到。其它三项选择均应排除。
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