首页
登录
职称英语
Like all animal species, plant species must spread their offspring to suitabl
Like all animal species, plant species must spread their offspring to suitabl
游客
2023-12-20
48
管理
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 walking or flying. 【M1】_____
Because plants don’t have that ability,
they may somehow hitchhike. Some plant seeds scatter by 【M2】_____
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 【M3】_____
later spits out the seeds somewhere far from its parent tree.
Seeds can thereby be carried thousands 【M4】_____
of miles. It may 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 ready to be 【M5】_____
planted, the surrounding fruit is green, sour, and hard.
When the seeds final mature, the berries turn 【M6】_____
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 【M7】_____
with a conscious intent of attracting birds only when
their seeds were ready to be dispersed away. 【M8】_____
Nor did birds set out with the intent of planting strawberries. Rather, strawberry plants evolved
through natural selection.
The sweeter and reder the final strawberry, the more birds spread its ripe 【M9】_____
seeds;the greener and more sour the young strawberry,
the birds destroyed the seeds by eating 【M10】_____
berries before the seeds were ready. [br] 【M10】
选项
答案
the ∧ birds改成fewer
解析
此结构使用两个比较级,故应前后一致,后面句子应该也出现反映比较级的词语。
转载请注明原文地址:https://tihaiku.com/zcyy/3290654.html
相关试题推荐
[originaltext]Becauseofitswidespreadusegeographically,andbecauseoft
[originaltext]Becauseofitswidespreadusegeographically,andbecauseoft
[originaltext]Healthexpertssaywashingyourhandsreducesthespreadofvi
[originaltext]Healthexpertssaywashingyourhandsreducesthespreadofvi
Speciesinterdependenceinnatureconfersmanybenefitsonthespeciesinvol
Speciesinterdependenceinnatureconfersmanybenefitsonthespeciesinvol
Infact,theysay,onereasonendangered-specieslegislationhasnotpassedist
Infact,theysay,onereasonendangered-specieslegislationhasnotpassedist
Thelargestanimalthateverlivedonlandorinwaterstillexists.Noteve
Thelargestanimalthateverlivedonlandorinwaterstillexists.Noteve
随机试题
In1870srichpeoplebegantospeakofspendingweekendsinthecountryvisi
MuhammadAli,hishandsshakingandeyesreflectingtheWhiteHousechandeli
[originaltext]Considerthefactthatcropsgenerallyproduceseveralhundre
大学生的思想素质趋成熟,其主要表现为()A.思维具有一定的创造性 B.思维
最易进入上颌窦的断根是A.第一磨牙腭根、第二磨牙近中颊根 B.第一磨牙腭根、第
如图5所示,空间存在互相垂直的匀强电场和匀强磁场,图中虚线为匀强电场的等势线,一
以下是哥特式建筑的是()。 A.巴黎圣母院B.比萨斜塔 C.比萨大教堂
“工欲善其事,必先利其器”蕴含的哲学原理是:A.在事物的发展过程中要注意事物的自
期货交易所制定或者修改章程、交易规则,应当经中国期货业协会批准。()
施工过程的质量控制,必须以()为基础和核心。A.工序的质量控制 B.最终
最新回复
(
0
)