1.Experiments show that insects can function as pollinators of cycads, rare, palmlike tropical plants.这句话rare, palmlike tropical plants是插入语还是同位语还是?为什么?
2.Because the potential hazards pollen grains are subject to as they are transported over long distances are enormous,wind pollinated plants have compensated for the ensuing loss of pollen。从句中有because和as 2个连词,一个状语从句里面还可以再加一个状语从句?
3.The change met the technical requirements of the new age by engaging a large professional element and prevented the decline in efficency that so commonly spoiled the fortunes of family firms in the second and third generation after the energetic founders.后半部分that引导的是什么从句?怎么看的?