【gre真题答案解析】gre考满分为考生准备gre 填空和等价tc真题答案解析,consuming 25 to 35 percent of their body weight each day, sea otters are not only _____ but highly. Fewer otters would have allowed sea urchins` grazing pressure on kelp forests to increase. 【gre真题答案解析】gre考满分为考生准备gre 填空和等价tc真题答案解析,assessing otters' environmental requirements is surprisingly (i)___________.
Fewer otters would have allowed sea urchins` grazing pressure on kelp forests to increase. The research on otters' environmental requirements is surprisingly (i)_____. One reason for this has to do with the estimation of how much they use different areas.
Doing so may be (ii)_____. One reason for this has to. Sea cows were totally dependent on kelp for food, and within a decade of the onset of otter. The growth of kelp in the kelp bed communities of the north pacific ocean is _________ sea otters: