A Moderator. B Introducer C Lecturer. D Reporter. 15. The phrase“ now and then” means A right away B when you are finished C occasionally for a while There are some 65 species of New World monkeys. Many of these have very useful an atomical adaptation lacking in their old World counterparts the prehensile tail And in a few species the gripping tail has developed to such an extent that it actually has " fingerprints"on the tip. While of course a tail is not equipped with fingers, it can sometimes be even more useful than an arm or a leg. a spider monkeys tail, for instance, is longer than its head and body combined and is frequently used instead of a hand to grasp distant objects. other monkeys less fortunate are forced to relegate at least one limb to support while they feed. Whereas monkeys endowed with prehensility ca hang by their tails while they feast with both hands and feet a few New world monkeys have also evolve arms and shoulders that are suitable for swinging hand over hand through the tress like the Asiatic Gibbons 16. The passage mainly discusses A certain evolutionary advantage of New World monkeys B feeding habits of the spider monkey C the development of arms and shoulders in New World monkeys D some anatomical adaptations of Asiatic Gibbons 17. The author probably believes that a monkey use its prehensile tail especially for A running over a grassy plain Bsupporting itself while eatingA.Moderator.B.Introducer. C.Lecturer.D.Reporter. 15.The phrase “now and then” means ____. A.right awayB.when you are finished C.occasionallyD.for a while 4 There are some 65 species of New World monkeys.Many of these have very useful an atomical adaptation lacking in their Old World counterparts:the prehensile tail. And in a few species the gripping tail has developed to such an extent that it actually has “fingerprints” on the tip.While of course a tail is not equipped with fingers,it can sometimes be even more useful than an arm or a leg.A spider monkey’s tail,for instance,is longer than its head and body combined,and is frequently used instead of a hand to grasp distant objects.Other monkeys less fortunate are forced to relegate at least one limb to support while they feed.Whereas monkeys endowed with prehensility can hang by their tails while they feast with both hands and feet.A few New World monkeys have also evolved arms and shoulders that are suitable for swinging hand over hand through the tress like the Asiatic Gibbons. 16.The passage mainly discusses ____. A.certain evolutionary advantage of New World monkeys B.feeding habits of the spider monkey C.the development of arms and shoulders in New World monkeys D.some anatomical adaptations of Asiatic Gibbons 17.The author probably believes that a monkey use its prehensile tail especially for ____. A.running over a grassy plain B.supporting itself while eating