pupation

简明释义

英[ˌpjuːˈpeɪʃən]美[ˌpjuːˈpeɪʃən]

n. 蛹化

英英释义

单词用法

同义词

反义词

例句

1.This paper focused on the larva growth rate, mortality, pupation rate, nutritional component of Tenebrio molitor L.

室内研究了饲料种类、饲养密度对黄粉虫幼虫生长速度、死亡率、化蛹率和虫体营养成分的影响。

2.The content of protein in blood has a dynamic change from first day of fifth instar to first day of pupation on cassava-silkworm(the Nanning No. 1 race).

本文报道木薯蚕南一品种，从五龄起蚕至化蛹第一天血液蛋白质含量的动态变化。

3.The larvae had five instars, and exuviated at night, pupated at 5rd instar old larvae, pupation time need 2-4 days.

幼虫共有5龄，以夜晚蜕皮为主，5龄幼虫老熟后即觅地化蛹，化蛹持续时间2 - 4天。

4.The injury symptom of leaves caused by larvae varied with host plants, and the pupation site was different depending on the host plants.

幼虫在不同寄主植物上取食危害的症状不同，其化蛹部位也不同。

5.The content of protein in blood has a dynamic change from first day of fifth instar to first day of pupation on cassava-silkworm(the Nanning No. 1 race).

本文报道木薯蚕南一品种，从五龄起蚕至化蛹第一天血液蛋白质含量的动态变化。

6.From about one week before pupation (the last instar) haemolymph ecdysteroid titres went up forming two separated peaks.

预蛹化蛹前一周血淋巴中蜕皮甾类激素滴度存在两个与变态相对应的峰值。

7.The survival and pupation rates of the larvae increased with increase of larval weight because of water drinking.

幼虫的存活和化蛹率随幼虫饮水后体重的增加而增加。

8.Ground dry dog or cat food encourages pupation.

地面干燥的狗或猫的食物，鼓励化蛹。

9.After pupation, the CAT activity increased rapidly and reached the peak at the middle stage of pupae, then decreased rapidly until emergence.

化蛹后，CAT活性迅速升高，至蛹中期达峰值，随后下降直至羽化。

10.During the life cycle of a butterfly, the stage of pupation is critical for its transformation into an adult.

在蝴蝶的生命周期中，蛹期阶段对其变成成年蝴蝶至关重要。

11.The caterpillar must find a safe place to undergo pupation, away from predators.

毛虫必须找到一个安全的地方进行蛹期，以避开捕食者。

12.Scientists study the pupation process to understand how environmental factors affect insect development.

科学家研究蛹期过程，以了解环境因素如何影响昆虫发育。

13.After several weeks of feeding, the larva begins its pupation phase in a sheltered location.

经过几周的进食，幼虫开始在一个隐蔽的地方进入蛹期。

14.The duration of pupation can vary significantly among different species of insects.

不同昆虫物种之间，蛹期的持续时间可能会有显著差异。

作文

In the fascinating world of insects, one of the most intriguing processes is known as pupation. This term refers to the stage in an insect's life cycle when it undergoes transformation from a larva to an adult. The pupation phase is crucial for many species, particularly butterflies and moths, as it represents a significant metamorphosis that allows them to emerge as fully developed adults. During this period, the larva ceases to feed and enters a dormant state, often encased in a protective shell called a pupa or chrysalis. The process of pupation varies among different insect species, but generally, it involves several stages. First, the larva finds a suitable location to undergo this transformation. This site is typically safe from predators and environmental hazards. Once settled, the larva will attach itself to a surface, such as a leaf or twig, and begin the process of forming its protective casing. Inside the pupa, remarkable changes occur. The larval tissues break down and reorganize into the structures of the adult insect. This process is not only fascinating but also complex, as it involves the reprogramming of cells to form wings, legs, and other vital parts of the adult body. For example, in butterflies, the vibrant colors and patterns that we admire as adults are formed during this stage. The duration of pupation can vary widely depending on the species and environmental conditions. Some insects may remain in the pupal stage for just a few days, while others might take several months or even years. Factors such as temperature, humidity, and food availability can all influence the timing of this critical phase. Once the metamorphosis is complete, the adult insect emerges from the pupa. This moment is often a dramatic event, as the newly formed wings must expand and dry before the insect can take its first flight. The emergence from pupation is a vulnerable time for the insect, as it is exposed to potential threats from predators and environmental conditions. Therefore, many species develop specific behaviors or adaptations to enhance their survival during this critical transition. In conclusion, pupation is a vital process in the life cycle of many insects, marking the transition from larva to adult. It is a time of profound change and development, showcasing the intricate beauty of nature's design. Understanding this process not only enriches our appreciation for insects but also highlights the importance of preserving their habitats, as these creatures play essential roles in our ecosystems. As we continue to explore and study the natural world, the phenomenon of pupation serves as a reminder of the incredible transformations that occur in life, encouraging us to observe and respect the delicate balance of nature around us.

在昆虫迷人的世界里，最引人入胜的过程之一被称为蛹化。这个术语指的是昆虫生命周期中的一个阶段，当它从幼虫转变为成虫时。蛹化阶段对许多物种至关重要，特别是蝴蝶和蛾子，因为它代表了一种显著的蜕变，使它们能够以完全发育的成年形式出现。在此期间，幼虫停止进食，进入一种休眠状态，通常被包裹在一个叫做蛹或茧的保护壳中。 蛹化的过程因不同的昆虫物种而异，但通常涉及几个阶段。首先，幼虫寻找一个合适的位置来进行这种转变。这个地点通常远离捕食者和环境危险。一旦安顿下来，幼虫会附着在一个表面上，比如叶子或树枝，并开始形成其保护外壳的过程。 在蛹内，惊人的变化发生了。幼虫的组织分解并重新组织成成虫的结构。这个过程不仅令人着迷，而且复杂，因为它涉及到细胞的重新编程，以形成翅膀、腿和其他成虫体的重要部分。例如，在蝴蝶中，我们欣赏的鲜艳颜色和图案就是在这一阶段形成的。 蛹化的持续时间可能因物种和环境条件而异。有些昆虫可能在蛹阶段仅停留几天，而其他昆虫则可能需要几个月甚至数年。温度、湿度和食物供应等因素都可能影响这一关键阶段的时间。 一旦蜕变完成，成虫就会从蛹中出现。这个时刻往往是一个戏剧性的事件，因为新形成的翅膀必须展开并干燥，才能让昆虫第一次飞行。从蛹化中出现是昆虫脆弱的时刻，因为它暴露在捕食者和环境条件的潜在威胁下。因此，许多物种发展出特定的行为或适应性，以增强它们在这一关键过渡期间的生存能力。 总之，蛹化是许多昆虫生命周期中的一个重要过程，标志着从幼虫到成虫的转变。这是一个深刻变化和发展的时期，展示了自然设计的精致美。理解这个过程不仅丰富了我们对昆虫的欣赏，也突显了保护它们栖息地的重要性，因为这些生物在我们的生态系统中发挥着至关重要的作用。当我们继续探索和研究自然世界时，蛹化现象提醒我们生活中发生的不可思议的变迁，鼓励我们观察和尊重我们周围自然界的微妙平衡。