Thereareanextremelylargenumberofantsworldwide.Eachindi...
问题详情:
There are an extremely large number of ants worldwide. Each individual (个体的) ant hardly weigh anything, but put together they weigh roughly the same as all of mankind. They also live nearly everywhere, except on frozen mountain tops and around the poles. For animals their size, ants have been astonishingly successful, largely due to their wonderful social behavior. In colonies (群体) that range in size from a few hundred to tens of millions, they organize their lives with a clear division of labor. Even more amazing is how they achieve this level of organization. Where we use sound and sight to communicate, ants depend primarily on pheromone (外激素), chemicals sent out by individuals and smelled or tasted by fellow members of their colony. When an ant finds food, it produces a pheromone that will lead others straight to where the food is. When an individual ant comes under attack or is dying, it sends out an alarm pheromone to warn the colony to prepare for a conflict as a defense unit. In fact, when it comes to the art of war, ants have no equal. They are completely fearless and will readily take on a creature much larger than themselves, attacking in large groups and overcoming their target. Such is their devotion to the common good of the colony that not only soldier ants but also worker ants will sacrifice their lives to help defeat an enemy. Behaving in this selfless and devoted manner, these little creatures have survived on Earth, for more than 140 million years, far longer than dinosaurs. Because they think as one, they have a collective (集体的) intelligence greater than you would expect from its individual parts. 9.We can learn from the passage that ants are ____________. A.not willing to share food
B.not found around the poles C.more successful than all other animals
D.too many to achieve any level of organization 10.Ants can use pheromones for______. A.escape B.communication
C.warning enemies D.arranging labor 11.What does the underlined expression "take on" in Paragraph 3 mean? A.Accept. B.Employ. C.Play with. D.Fight against.
【回答】
BBD
知识点:阅读理解
题型:阅读理解
-
有关叙述:能说明M比N的非金属*强的叙述是 ①非金属单质...
问题详情:有关叙述:能说明M比N的非金属*强的叙述是 ①非金属单质M能从N的化合物中置换出非金属单质N。 ②M原子比N原子容易得到电子。③单质M跟H2反应比N跟H2反应容易得多。 ④气态*化物水溶液的**H...
-
某商品进价是1000元,售价为1500元.为促销,商店决定降价出售,但保*利润率不低于,则商店最多降 元...
问题详情:某商品进价是1000元,售价为1500元.为促销,商店决定降价出售,但保*利润率不低于,则商店最多降元出售商品.【回答】450元. 知识点:一元一次不等式题型:解答题...
-
以KCl和ZnCl2混合液为电镀液在铁制品上镀锌,下列说法正确的是( )A.未通电前上述镀锌装置可构成原电池...
问题详情:以KCl和ZnCl2混合液为电镀液在铁制品上镀锌,下列说法正确的是()A.未通电前上述镀锌装置可构成原电池,电镀过程是该原电池的充电过程B.因部分电能转化为热能,电镀时通过的电量与锌的析出量无确定关系C.电镀时保持电流恒定,升高温度不改变电解反应速率D.镀锌层破...
-
予独爱莲之 , 。(周敦颐《爱莲说》)
问题详情:予独爱莲之 , 。(周敦颐《爱莲说》)【回答】出淤泥而不染,濯清涟而不妖知识点:作家作品题型:填空题...
相关文章
- Atonetime,computerswereexpectedlargelytoremovetheneedf...
- Thereareanextremelylargenumberofantsworldwide.Eachin...
- IfirstmetPaulNewmanin1968,whenGeorgeRoyHill,thedirector...
- —JohnandIwillcelebrateourfortiethweddinganniversarynext...
- —MywifeandIwillcelebrateourtwentiethweddinganniversaryn...
- Herearetwolettersfromourreadersexpressingtheirconcernab...
- Atonetime,computerswereexpectedlargelytoremovetheneedfo...
- TodayI’dliketoshareoneofmyunforgettableexperiencewithev...
- Wanttogetthin?Eatmorefruitandvegetables—they'realowcal...
- Thereareanextremelylargenumberofantsworldwide.Eachindiv...