holometabolous

简明释义

英[ˌhɒləmɪˈtæbələs]美[ˌhɒləmɪˈtæbələs]

adj. [昆] 完全变态的

英英释义

单词用法

同义词

反义词

例句

1.There are about 750,000 species of named insects and 85% of these are holometabolous.

已定名的昆虫约有750,000种，其中85%的昆虫都是完全变态的。

2.Molting and metamorphosis are the typical developmental characters in holometabolous insects.

蜕皮与变态是全变态昆虫典型的发育特征。

3.Molting and metamorphosis are the typical developmental characters in holometabolous insects.

蜕皮与变态是全变态昆虫典型的发育特征。

4.Ants are also holometabolous 完全变态的, with complex social structures emerging after metamorphosis.

蚂蚁也是holometabolous 完全变态的，在变态后形成复杂的社会结构。

5.Flies are classified as holometabolous 完全变态的 insects due to their distinct life stages.

苍蝇被归类为holometabolous 完全变态的昆虫，因为它们具有不同的生活阶段。

6.The life cycle of butterflies is an example of a holometabolous 完全变态的 insect development.

蝴蝶的生命周期是一个holometabolous 完全变态的昆虫发育的例子。

7.Beetles undergo holometabolous 完全变态的 metamorphosis, transitioning from larva to pupa.

甲虫经历holometabolous 完全变态的变态，从幼虫过渡到蛹。

8.The holometabolous 完全变态的 lifecycle includes egg, larva, pupa, and adult stages.

holometabolous 完全变态的生命周期包括卵、幼虫、蛹和成虫阶段。

作文

In the fascinating world of entomology, one comes across various life cycles of insects, each unique in its own right. One such intriguing life cycle is that of holometabolous insects, which undergo a complete metamorphosis during their development. The term holometabolous refers to insects that experience four distinct stages: egg, larva, pupa, and adult. This process stands in contrast to hemimetabolous insects, which only go through three stages and do not have a pupal stage. Understanding the holometabolous life cycle can provide insights into the adaptability and survival strategies of these organisms.The first stage begins with the egg, where the female insect lays her eggs in a suitable environment. The choice of location is crucial, as it affects the survival of the larvae once they hatch. After a certain period, depending on the species and environmental conditions, the eggs hatch into larvae. This second stage is characterized by rapid growth and feeding. Larvae are often quite different in appearance from the adult form; for example, caterpillars, which are the larvae of butterflies, look nothing like the beautiful adults they will eventually become. This stage can last from a few weeks to several months, depending on the species and available resources.As the larvae grow, they eventually reach a point where they must undergo transformation. This transition leads to the third stage: the pupal stage. During this phase, the larva undergoes significant changes, often referred to as metamorphosis. Inside the protective casing of the pupa, the insect's body is reorganized and restructured. This process can take days, weeks, or even months, depending on the species and environmental factors. It is during this time that the remarkable transformation occurs, allowing the insect to emerge in its final form.Finally, the adult stage is reached, completing the holometabolous life cycle. Adult insects are generally more mobile and capable of reproduction. They possess characteristics that are often vastly different from those of their larval forms. For instance, adult beetles are hard-shelled and can fly, whereas their larvae are soft-bodied and crawl. This drastic change allows them to occupy different ecological niches and reduces competition for resources between the juvenile and adult stages.The holometabolous life cycle offers several advantages. One significant benefit is that larvae and adults can exploit different food sources, minimizing competition. Additionally, the pupal stage provides a level of protection against predators and environmental challenges. This adaptability has allowed holometabolous insects to thrive in diverse habitats worldwide.In conclusion, the study of holometabolous insects reveals the remarkable ways in which nature has evolved complex life cycles to enhance survival and adaptability. By understanding these processes, scientists can gain insights into ecological interactions, evolutionary biology, and even the impacts of environmental changes on insect populations. As we continue to explore the intricacies of insect life, the significance of the holometabolous life cycle remains a captivating subject worthy of further investigation.

在迷人的昆虫学世界中，人们会遇到各种昆虫的生命周期，每个生命周期都有其独特之处。其中一个引人入胜的生命周期是完全变态昆虫的生命周期，它们在发育过程中经历完全的变态。术语holometabolous指的是经历四个不同阶段的昆虫：卵、幼虫、蛹和成虫。这一过程与半变态昆虫形成对比，后者只经历三个阶段，没有蛹阶段。理解holometabolous生命周期可以为我们提供关于这些生物的适应性和生存策略的深入见解。第一个阶段是卵，雌性昆虫在适宜的环境中产卵。地点的选择至关重要，因为它影响到幼虫一旦孵化后的生存。经过一段时间，具体取决于物种和环境条件，卵孵化成幼虫。第二阶段的特点是快速生长和觅食。幼虫的外观通常与成虫大相径庭；例如，毛毛虫，即蝴蝶的幼虫，其外观与最终将成为的美丽成虫毫不相似。这个阶段可能持续几周到几个月，具体取决于物种及其可用资源。随着幼虫的生长，它们最终会达到一个必须进行转变的阶段。这一过渡导致了第三阶段：蛹阶段。在此阶段，幼虫经历显著变化，通常称为变态。在蛹的保护外壳内，昆虫的身体被重新组织和重构。这个过程可能需要几天、几周甚至几个月，具体取决于物种和环境因素。在这一时期，惊人的转变发生，使昆虫能够以最终形态出现。最后，成虫阶段的到来完成了holometabolous生命周期。成虫昆虫通常更加灵活，并具备繁殖能力。它们具有的特征通常与幼虫形式截然不同。例如，成虫甲虫外壳坚硬，可以飞行，而它们的幼虫则体软，爬行。这种戏剧性的变化使得它们能够占据不同的生态位，减少幼虫和成虫阶段之间的资源竞争。holometabolous生命周期提供了几个优势。一个显著的好处是幼虫和成虫可以利用不同的食物来源，从而减少竞争。此外，蛹阶段为昆虫提供了一定程度的保护，以抵御捕食者和环境挑战。这种适应性使得完全变态昆虫能够在全球多样的栖息地中繁荣发展。总之，对holometabolous昆虫的研究揭示了自然界在进化复杂生命周期以增强生存和适应能力方面的非凡方式。通过理解这些过程，科学家可以获得关于生态互动、进化生物学，甚至环境变化对昆虫种群影响的见解。在我们继续探索昆虫生活的复杂性时，holometabolous生命周期的重要性仍然是一个值得进一步研究的迷人课题。