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
2023-12-15
51
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 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. [br] 【M5】
选项
答案
tactic改成tactics。tactic
解析
是可数名词,且结合上文,此处应用复数。
转载请注明原文地址:https://tihaiku.com/zcyy/3276630.html
相关试题推荐
GeorgeOrwell’s______isconsideredasananti-utopiannovel.A、AnimalFarmB、Ni
Skeletalremainswithanimalbonebladestiedtothefeettestifytoskating’s
Likeallanimalspecies,plantspeciesmustspreadtheiroffspringtosuitabl
Likeallanimalspecies,plantspeciesmustspreadtheiroffspringtosuitabl
Likeallanimalspecies,plantspeciesmustspreadtheiroffspringtosuitabl
Likeallanimalspecies,plantspeciesmustspreadtheiroffspringtosuitabl
Likeallanimalspecies,plantspeciesmustspreadtheiroffspringtosuitabl
Vibrationsinthegroundareapoorlyunderstoodbutprobablywidespreadmeans
Vibrationsinthegroundareapoorlyunderstoodbutprobablywidespreadmeans
Vibrationsinthegroundareapoorlyunderstoodbutprobablywidespreadmeans
随机试题
关于地铁是否该禁食,这两三年来上海、深圳、北京等大城市,陆续有很多讨论。支持禁食者认为,在地铁车厢里吃东西,不仅气味难闻。而且一旦翻撒还会影响车厢整洁,也会造成
Educationismuchmoreopen-endedandall-inclusivethanschooling.Educatio
WhenIaminaserioushumor,IveryoftenwalkbymyselfinWestminsterAbb
Bynow,howtheimmunesystemisaffectedbystresshasbeenwell-documented
口腔颌面损伤后伤口愈合快、抗感染能力强是由于A.伤口暴露容易清洁 B.咀嚼运动
患者,男,3岁。生疖于头顶皮肉较薄之处,引流不畅,头皮串空,其诊断是()A
青蒿鳖甲汤的药物组成中不包括A.地骨皮B.鳖甲C.知母D.生地黄E.丹皮
利水渗湿药在使用时应注意A.脾肾阳虚者不宜用B.阴虚津伤者慎用C.脾虚者忌用D.
提炼企业层面的KPI的工具是()A.任务分工矩阵 B.目标分解鱼骨图 C.
根据《建设工程安全生产管理条例》,下列达到一定规模的危险性较大的分部分项工程中,
最新回复
(
0
)