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生物学知识与人的生活关系密切。请结合所学的知识解答下列问题: (1)炎热的夏季,爱吃板烧鱿鱼和凉拌。鱿鱼、分别属于哪一类动物?___________、_______________。 (2)奶奶家养着家兔,奶奶经常给它喂青草。家兔牙齿的门齿适于_______________;家兔的消化道还有发达的_________,也适于消化青草。一天当刚要抓住这只家兔时,它飞快地逃跑了,它之所以能够感受来自外界的刺激,是因为它还象其它哺乳动物一样具有发达的_______和遍布全身的_________,更好地适应陆地生活。 (3)在黄海南部潜伏越冬的小黄鱼,每年3月集结奔向山东半岛,入渤海产卵;直到秋季,才陆续南移回到黄海中心。小黄鱼是通过________的摆动和________的协调作用进行游泳来完成长途“旅行”。 (4)鱼类与蚯蚓、蝗虫等一类动物的主要区别是_____________________;蚯蚓身体中与鱼鳃功能相当的结构是_________。 (5)观察鱼缸中的鱼,可以看到它的口和鳃盖后缘不停地相互交替关闭,这是进行______;而且鱼的鳃是鲜红色的,其原因是:_____________________。当它离开,鳃丝则相互黏结,______了与空气的接触面积,并且容易干燥,窒息死亡。 (6)小养了一只可爱的鹦鹉,这只鹦鹉给她带来了很多快乐,不过也有让不满意的地方:关在笼子里的鹦鹉,总是很快就使笼子积满了粪便,而且她还发现鹦鹉不撒尿,原因__________________________________________________________________________________________________________________________________________________。 (7)雨后发现蚯蚓纷纷从爬到地面上来,她猜想可能的原因是_____________________________。
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