larval

简明释义

英[ˈlɑːvl]美[ˈlɑːrvl]

adj. 幼虫的；幼虫状态的；潜在的；隐蔽的

英英释义

单词用法

同义词

反义词

例句

1.Rotifers are adequate first feeds of larval rearing of marine fish.

轮虫是海产鱼类苗种的适宜开口饵料和优质食物。

2.Above: Salivary lips showing parallel ridges of inner surface of lower lip, last larval instar of Osmia chalybea.

上图：壁蜂老熟幼虫下唇内表面的平行纹

3.Larval and nymphal ticks may penetrate a coarse weave sock.

幼虫和蜱蛹可能会渗透粗织袜子。

4.The results showed that albumin, globulins and small molecular peptides were the main components of the defatted larval powder.

结果表明：清蛋白、球蛋白和小分子肽是组成脱脂蝇蛆粉蛋白的主要成分。

5.The results showed that all the preparations from the larval intestines contained chymotrypsin-like and trypsin-like enzymes.

结果表明：三种幼虫肠道都含有类胰凝乳蛋白酶和类胰蛋白酶。

6.Some 99 percent of all fish mortality occurs in the larval stage.

大约有99%的鱼类死亡都发生在幼鱼阶段。

7.Larval CoT starfish eat phytoplankton in their first month of life, so more fertilizer in the ocean means more phytoplankton, which means more starfish, bad for the reefs.

年幼的刺冠海星在出生后的第一个月就以浮游植物为食，所以海洋中肥料越多，浮游植物就越多，也意味着海星越多，这对珊瑚礁非常不利。

8.This paper reported the embryonic and larval development of Fugu flavidus.

本文报道了菊黄东方鲀胚胎及仔稚幼鱼发育情况。

9.During the larval 幼虫的 phase, many insects are particularly vulnerable to predators.

在幼虫的阶段，许多昆虫特别容易受到捕食者的攻击。

10.After hatching, the frog goes through a larval 幼虫的 stage known as a tadpole.

孵化后，青蛙经历一个被称为蝌蚪的幼虫的阶段。

11.The scientist observed the larval 幼虫的 stage of the butterfly in the garden.

科学家在花园里观察到了蝴蝶的幼虫的阶段。

12.The larval 幼虫的 form of the mosquito is often found in stagnant water.

蚊子的幼虫的形态通常在静止的水中发现。

13.The researchers studied the larval 幼虫的 development of various fish species.

研究人员研究了各种鱼类的幼虫的发育情况。

作文

The study of insects has always fascinated scientists and nature enthusiasts alike. One of the most intriguing phases of an insect's life cycle is the larval 幼虫的 stage. This stage is crucial for the development of many species, as it plays a significant role in their growth and transformation into adult insects. In this essay, we will explore the importance of the larval 幼虫的 stage, its characteristics, and its impact on the ecosystem.Insects undergo a process known as metamorphosis, which involves several distinct stages: egg, larval 幼虫的, pupal, and adult. The larval 幼虫的 stage follows the hatching of the egg and can vary greatly in duration depending on the species. During this time, the larval 幼虫的 form is primarily focused on feeding and growing. They consume large amounts of food to store energy for their transformation into the adult form. For example, caterpillars, which are the larval 幼虫的 stage of butterflies, can eat leaves voraciously, often consuming several times their body weight in a single day.The physical characteristics of larval 幼虫的 insects are quite different from their adult counterparts. Most larval 幼虫的 forms lack wings and reproductive organs, and they often have a worm-like appearance. This morphology is advantageous as it allows them to blend into their environment, avoiding predators. Furthermore, some larval 幼虫的 insects, such as certain beetles, possess unique adaptations like camouflage or spines to deter potential threats.The ecological role of the larval 幼虫的 stage cannot be overstated. These insects contribute significantly to nutrient cycling within ecosystems. As they feed on plant material, they help break down organic matter, returning vital nutrients to the soil. This process fosters healthy plant growth, which, in turn, supports other organisms in the food web. Additionally, larval 幼虫的 insects serve as a crucial food source for various predators, including birds, amphibians, and other insects. Their abundance in the ecosystem highlights their importance in maintaining biodiversity.However, the survival of larval 幼虫的 insects is threatened by various environmental factors. Habitat destruction, pollution, and climate change pose significant risks to their populations. For instance, the use of pesticides can directly impact larval 幼虫的 stages of beneficial insects, leading to declines in their numbers. Conservation efforts must prioritize the protection of habitats that support these vulnerable life stages to ensure the stability of ecosystems.In conclusion, the larval 幼虫的 stage of insects is a vital component of their life cycle and plays a significant role in ecological systems. Understanding the characteristics and importance of this stage can help us appreciate the intricate relationships within nature. By protecting larval 幼虫的 habitats and promoting sustainable practices, we can contribute to the health of our environment and the preservation of biodiversity for future generations.

昆虫的研究一直以来都吸引着科学家和自然爱好者的关注。昆虫生命周期中最有趣的阶段之一是幼虫的阶段。这个阶段对许多物种的发展至关重要，因为它在昆虫成长和转变为成虫的过程中发挥着重要作用。在这篇文章中，我们将探讨幼虫的阶段的重要性、特征及其对生态系统的影响。昆虫经历一种称为变态发育的过程，其中包括几个不同的阶段：卵、幼虫的、蛹和成虫。幼虫的阶段紧随卵孵化之后，其持续时间因物种而异。在此期间，幼虫的形式主要专注于进食和生长。它们摄取大量食物以储存能量，为转变为成虫做准备。例如，毛虫，即蝴蝶的幼虫的阶段，可以贪婪地吃叶子，通常在一天内消耗几倍于其体重的食物。幼虫的昆虫在身体特征上与成虫截然不同。大多数幼虫的形式缺乏翅膀和生殖器官，通常呈现出类似蠕虫的外观。这种形态学特征是有利的，因为它使它们能够融入环境，避免捕食者。此外，一些幼虫的昆虫，如某些甲虫，具有独特的适应性，如伪装或刺，以威慑潜在的威胁。幼虫的阶段在生态中的角色不容小觑。这些昆虫在生态系统中对养分循环贡献显著。当它们以植物材料为食时，有助于分解有机物，将重要的养分返回土壤。这一过程促进了植物的健康生长，进而支持食物链中的其他生物。此外，幼虫的昆虫作为各种捕食者的重要食物来源，包括鸟类、两栖动物和其他昆虫。它们在生态系统中的丰富程度突显了它们在维持生物多样性方面的重要性。然而，幼虫的昆虫的生存受到各种环境因素的威胁。栖息地破坏、污染和气候变化对它们的种群构成了重大风险。例如，农药的使用可能直接影响有益昆虫的幼虫的阶段，导致其数量下降。保护工作必须优先考虑保护这些脆弱生命阶段的栖息地，以确保生态系统的稳定。总之，昆虫的幼虫的阶段是其生命周期的重要组成部分，并在生态系统中发挥着重要作用。理解这一阶段的特征和重要性可以帮助我们欣赏自然界中的复杂关系。通过保护幼虫的栖息地并促进可持续做法，我们可以为环境的健康和未来世代生物多样性的保护作出贡献。