首页
登录
职称英语
Like all animal species, plant species must spread their offspring to suitab
Like all animal species, plant species must spread their offspring to suitab
游客
2023-12-18
50
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 【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【M3】______
somewhere far from its parent tree.
Seeds can thereby be carried thousands of miles. 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 mm 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 reder 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. [br] 【M7】
选项
答案
doesn’t改成didn’t。
解析
时态不一致,应使用过去时。
转载请注明原文地址:https://tihaiku.com/zcyy/3284728.html
相关试题推荐
Indozensofyears,therearemorecasesoftheinvasionofalienspeciespartly
Indozensofyears,therearemorecasesoftheinvasionofalienspeciespartly
Somepeoplekeepanimalsaspets,regardingthemasfriendswhocanaccompan
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
TheValueofAnimalResearch Toparaphrase18th-centurystatesmanEdmu
1 Owingtothewidespreadexpansionofcasinos,thecostofpathologicalandpr
随机试题
Problemslikethis______everydayinthefactory.A、raiseB、riseC、getD、ariseDa
Impressionismisaformofartthatbeganinthe1870’s.Whenyoulookclose
Notuntilthegamehadbegun()atthesp
从未排序的序列中依次取出一个元素与已排序序列中的元素进行比较,然后将其放在已排序
某项目已制定了详细的范围说明书,并完成了WBS分解。在项目执行过程中,项目经理
根据传统国际法,下列属于领土取得方式的是()A.先占 B.时效 C.割让
从业人员拒绝协会调查或者检查的,或者所聘用机构拒绝配合调查的, 下列说法正确的
在新建商品房确定均价的过程中,划定市场调查范围和重点后应进行的工作是( )。A
下列施工企业收入中,属于营业收入的是()。A.企业购买债权获得的利息收入 B.
关于预警体系的建立,下列说法不正确的是()。A.预警体系是以事故现象的成因、特
最新回复
(
0
)