首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Like all animal species, plant species must spread their offspring to suitable areas where they can grow and pass on their paren
Like all animal species, plant species must spread their offspring to suitable areas where they can grow and pass on their paren
admin
2011-02-11
16
问题
Like all animal species, plant species must spread their offspring to suitable areas
where they can grow and pass on their parent’s genes. Young animals generally spread by 【M1】______
walking or flying. Because plants don’t have that ability, they may somehow hitchhike. 【M2】______
Some plant seeds scatter by blowing in the wind or floating on water. Many other plant
species, though, trick an animal into carrying their seeds. How do they do? They enclose
them within a tasty fruit and advertise the fruit’ s ripeness by its color or smell. The hungry
animal collects and swallows the fruit, walks or flies off, but later spits out the seeds some-【M3】______
where far from its parent tree. Seeds can thereby be carried thousands of mi]es. It may 【M4】______
surprise you to learn that plant seeds can resist digestion. In fact, some seeds actually
require passage through an animal’ s body before they can grow. Wild strawberries offer a
good example of hitchhiking tactic. When strawberry seeds are still young and not yet 【M5】______
ready to be planted, the surrounding fruit is green, sour, and hard. When the seeds final 【M6】______
mature, the berries turn red, sweet, and tender. The change in the berries’ color serves as a
signal to birds which then eat the strawberries, fly off, and eventually spit out the seeds.
Naturally, strawberry plants doesn’t set out with a conscious intent of attracting birds only 【M7】______
when their seeds were ready to be dispersed away. Nor did birds set out with the intent of 【M8】______
planting strawberries. Rather, strawberry plants evolved through natural selection. The
sweeter and ruder the final strawberry, the more birds spread its ripe seeds; the greener and 【M9】______
more sour the young strawberry, the birds destroyed the seeds by eating berries before the 【M10】______
seeds were ready.
【M3】
选项
答案
but改成and。
解析
逻辑错误,此处不存在转折。
转载请注明原文地址:https://www.kaotiyun.com/show/thYO777K
0
专业英语八级
相关试题推荐
WhichofthefollowingisNOTaculturalcelebrityofAmericanorigin?
Eliot’sinterestedinpoetryinabout1902withthediscoveryofRomantic.Hehadrecalledhowhewasinitiatedintopoetryby
WaltWhitmanwasapioneeringfigureofAmericanpoetry.Hisinnovation,firstofall,liesinhisuseof______,poetrywithout
Ifyouhaveeverdreamedofslippingintothecomfortingsoftnessofacashmeresweateryoushouldfollowtheexampleofthehab
WhenGermanyinvadedPoland,BritainandFrancedeclaredwaronGermany.ThentheU.S【1】______indebate.
ItispossibleforstudentstoobtainadvanceddegreesinEnglishwhileknowinglittleornothingabouttraditionalscholarlyme
Paris:ThankstoaFrenchinsurancecompany,bridesandbridegroomswithcoldfeetnolongerfacefinancialdisasterfromacanc
Paris:ThankstoaFrenchinsurancecompany,bridesandbridegroomswithcoldfeetnolongerfacefinancialdisasterfromacanc
TheStockMarketWhenanewcompanyisorganizedandsharesaresold,itisnothardtodeterminethevalueofeachshare:al
WhencatastrophicfloodshitBangladesh,TNT’semergency-responseteamwasready.Thelogisticsgiant,withheadquartersinAmst
随机试题
微小病变肾病的特点是
食管壁厚约4mm分为______层
A.失血伤阴B.亡血失精C.惊恐疼痛D.寒证痛证E.邪闭痛极
下列无机结合料稳定材料振动压实试验说法正确的是()。
编制全国主体功能区规划的主要原则包括()。
基金管理公司内部控制的总体目标不包括()。
生成EDI标准格式文件是指EDI通信过程的()。
教师劳动的特点包括创造性、复杂性、长期性和()。
教育与生产劳动由紧密结合走向分离始于()
数据流图(DFD)中的有向箭头(→)表示
最新回复
(
0
)