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
68
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] 【M8】
选项
答案
away改成away
解析
away在此处是多余的,故去掉。
转载请注明原文地址:http://tihaiku.com/zcyy/3290652.html
相关试题推荐
Accordingtotheauthorwhichofthefollowingisinevitable?[br]Intheanimal
Indozensofyears,therearemorecasesoftheinvasionofalienspeciespartly
Indozensofyears,therearemorecasesoftheinvasionofalienspeciespartly
ThebestknownAustraliananimalis______.A、bearB、kangarooC、hareD、elephant
Somepeoplekeepanimalsaspets,regardingthemasfriendswhocanaccompan
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
随机试题
[img]ct_epem_epelisv_01511(20097)[/img][br][originaltext]W:Look,thisyoungM
[originaltext]FreshterroristhorrorwasbroughthometotheUKyesterdayas
WilliamShakespeare(1564-1616)wrotemanyplaysandpoemswhichareknown
[originaltext]M:Yourhusbandisveryhelpful,isn’the?W:Maybeheiswilling
关于热性惊厥患儿发生癫痫的危险性不包括以下哪项A.直系亲属中有热性惊厥家族史
传统教育非常偏重数学的思维训练价值,而忽视了数学的应用价值。在新课程改革的今天,
某开发公司在工程建设方面经验不足,目前拟建项目的施工图设计尚未完成,在此情况下,
Thechangeinthatvillagewasmiraculou
结核性腹膜炎治疗中最重要的是A.腹腔内注射皮质激素,防止腹膜粘连 B.大量抽腹
男性,47岁,因呕吐、腹泻、低热于门诊应用庆大霉索40万U/d,共4天,近日来觉
最新回复
(
0
)