汉密尔顿指出,黄蜂卵在寄主即另一种昆虫的幼虫内发育,新出现的成年黄蜂立即交配并四散,这提供了一个非常有说服力的分析。
Hamilton, noting that the eggs develop within their host—the larva of another insect—and that the newly emerged adult wasps mate immediately and disperse, offered a remarkably cogent analysis.
现在,非洲最大的经济体正面临着一场粮食危机,非洲主要的番茄田被一种昆虫毁坏,导致全国范围内的番茄短缺,番茄价格不断上涨。
Now, Africa's largest economy is facing a food crisis as major tomato fields have been destroyed by an insect, leading to a nationwide shortage and escalating prices.
本发明涉及一种昆虫饲料及其制备方法。
The invention relates to insect forage and a preparation method thereof.
它看起来像是一种昆虫。
摘要:研究调查发现,一种昆虫可能是传播红斑病毒的罪魁祸首。
ABSTRACT: New research suggests an insect may be responsible for the spread of the red blotch virus.
但这些生物并不是水螅,它们是一种昆虫——像蚊子一样吸血为生的蚋的幼虫。
But these creatures are not polyps; they are insects: larvae of blood-sucking blackflies.
计算机作为一种昆虫分类的工具,已广泛用于昆虫的数值分类和支序分类中。
As a useful tool, computer has been widely used in the entomological research works including insect classification.
苍蝇双翅目带有两支翅膀的一种昆虫,尤指任何一种家蝇科的昆虫,包括家蝇。
Any of numerous two-winged insects of the order Diptera, especially any of the family Muscidae, which includes the housefly.
因此每一种昆虫,都是对菜园整体的生命、健康与良好状况而言所必不可少的。
Therefore each is necessary to the whole of the garden for it's life, health and well-being.
他告诉孩子们每一种昆虫对污染的敏感性,并要求他们据此推算出池塘的污染程度。
They are told how sensitive each species is to pollution, and asked to work out from this how polluted the pond is.
你可能经历过因为同一种昆虫叮咬或蜇伤时产生的上述两种即时反应和延迟反应。
You might experience both the immediate and the delayed reactions from the same insect bite or sting.
但是最近的研究发现一种昆虫,这种属于甲壳虫类的昆虫可以为自己开辟一条避开这种植物防御系统的通路,方法是切断主要的向叶子传递毒液的叶脉。
But a recent study has found one insect, a beetle that can chew its way past the plant's defense system by cutting the main vein that delivers the poison to the leaves.
这里生活着一种新疆特有的昆虫。
另一方面,西非内陆的降雨量增加,采采蝇活动区域的北部边界向南移动——一种对牛致命的昆虫。
On the other hand, rainfall increased in the interior of western Africa, and the northern limit of the tsetse fly, an insect fatal to cattle, moved south.
农民们了解到豌豆和豆子对昆虫的抵抗力要小得多,而玉米是一种比小麦更强壮的谷物。
Farmers learned that peas and beans were far less vulnerable to the insects, and corn was a more robust grain than wheat.
某些转基因玉米品种可以生产一种天然杀虫剂,保护玉米免受以玉米为食的昆虫的侵害。
Certain genetically modified strains of maize produce a natural insecticide that protects against maize-eating insects.
当一只昆虫与它们擦身而过时,就会触发一种微小的电荷,电荷沿着树叶里的隧道向下移动,并打开泪液细胞膜上的小孔。
When an insect brushes against them, this triggers a tiny electric charge, which travels down tunnels in the leaf and opens up pores in the tear's cell membranes.
一种南美洲的鸟,倒挂在高大的树上,觅食有翼的白蚁和其他小昆虫。
A South American bird that forages for winged termites and other small insects while swinging upside down form the foliage of tall trees.
如果有两个飞行昆虫种群居住在相距不远的不同山谷中,那么任一种群中的个体都有可能来回飞行,从而使基因流动继续。
If two flying insect populations took up residence in separate nearby valleys, chances are that individuals from each population would fly back and forth, continuing gene flow.
丝类是一种纤维蛋白,由蜘蛛或者桑蚕和某些昆虫的腺体所产生。
Silk is a fibrous protein, produced in glands within the spider or silkworm and some insects.
她的观察有助于驳斥一种普遍观点,即昆虫会从泥土中自然出现。
Her observations helped dismiss the popular belief that insects spontaneously emerged from mud.
20世纪60年代末期,当斯里兰卡繁荣的椰子果园被潜叶昆虫侵扰时,一种从新加坡引进的寄生幼虫将这种害虫控制住了。
In the late 1960s, when Sri Lanka's flourishing coconut groves were plagued by leaf-mining hispides, a larval parasite imported from Singapore brought the pest under control.
蝉是一种大型昆虫。
科学家们现在已经研究了喷洒灭害威的效果,灭害威是一种抗虫剂,对传粉昆虫的毒性最小。
Scientists have now investigated the effects of the spraying of Matacil, one of the anti-budworm agents that is least toxic to insect-pollinators.
它是一种无翅昆虫。
头虱是一种寄生于头发上的细小昆虫。
Pediculus humanus capitis is a tiny insect which lives on the hair.
旋木雀是一种小型的森林鸟类,有巨大的爪子,用来爬上树干寻找昆虫。
Treecreeper is a small forest bird with large claws for climbing tree trunks in search of insects.
字典告诉我们,蚂蚁是一种社会性昆虫。
真正可以飞的动物只有鸟类、昆虫还有一种哺乳动物——当然那就是蝙蝠。
The only animals that can truly fly are birds, insects, and one type of mammal, which is of course the bat.
真正可以飞的动物只有鸟类、昆虫还有一种哺乳动物——当然那就是蝙蝠。
The only animals that can truly fly are birds, insects, and one type of mammal, which is of course the bat.
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