molluscs

简明释义

英[ˈmɒl.ə.sk]美[ˈmɑː.ləsks]

n. 软体动物（mollusc 的复数）

英英释义

单词用法

同义词

反义词

例句

1.Snails and octopuses are molluscs.

蜗牛和章鱼是软体动物。

2.Most crocodilians, he reminded people, preferred to dine on fish or molluscs rather than farmers.

他提醒人们，大多数鳄鱼宁愿吃鱼或软体动物而不愿吃农夫。

3.Like squid, they were swimming tentacled molluscs-a group called the cephalopods.

它们象鱿鱼一样是游动的触手软体动物，这类软体动物被称为头足类动物。

4.These skeletal remains from creatures such as molluscs, crustacean and foraminifera create a pearly white sand beach.

海洋生物的骨骼残骸，比如软体动物、甲壳纲动物、有孔虫类使得海滩成为珍珠的白色。

5.Dr Riebesell is particularly interested in the ecosystem role of pteropods, also called sea butterflies. These elegant micro-molluscs are a vital food for some fish.

Riebesell博士对翼足类动物，又叫翼足目软体动物在生态系统中的角色尤其感兴趣，这些幽雅的微小软体动物是一些鱼类的重要食物。

6.The result is that a lot of other types of fish, crustaceans and molluscs are caught unintentionally.

结果就是很多其他种类的鱼类、甲壳类和软体类海洋生物都被无意中被捞了上来。

7.The shells of molluscs 软体动物 are often used in jewelry and decoration.

软体动物的壳常用于珠宝和装饰品中。

8.Many chefs consider molluscs 软体动物 like clams and mussels to be delicacies.

许多厨师认为像蛤蜊和贻贝这样的软体动物是美味佳肴。

9.Scientists study molluscs 软体动物 to understand their role in the ecosystem.

科学家研究软体动物以了解它们在生态系统中的作用。

10.Some species of molluscs 软体动物 can be found in freshwater environments.

一些种类的软体动物可以在淡水环境中找到。

11.The ocean is home to a diverse range of molluscs 软体动物, including octopuses and snails.

海洋中栖息着各种各样的软体动物，包括章鱼和蜗牛。

作文

Molluscs, or 软体动物, are a diverse group of invertebrate animals that belong to the phylum Mollusca. This phylum is one of the largest in the animal kingdom and includes a wide variety of species, such as snails, clams, squids, and octopuses. The term 软体动物 refers to their soft bodies, which are typically protected by a hard shell made of calcium carbonate. However, not all 软体动物 have shells; for example, squids and octopuses have evolved to have more flexible bodies without external shells.The body structure of 软体动物 generally consists of three main parts: the foot, the visceral mass, and the mantle. The foot is a muscular structure used for locomotion, attachment, or burrowing into substrates. The visceral mass contains most of the internal organs, while the mantle is a significant part of the anatomy that secretes the shell in those species that possess one. This unique body plan allows 软体动物 to occupy various ecological niches in both terrestrial and aquatic environments.One of the fascinating aspects of 软体动物 is their incredible adaptability. For instance, land snails have developed specialized lungs for breathing air, while marine 软体动物 like clams and oysters possess gills for extracting oxygen from water. Additionally, cephalopods, such as squids and octopuses, are known for their advanced nervous systems and complex behaviors, including problem-solving and communication through color changes.The ecological roles of 软体动物 are significant. They serve as important food sources for many animals, including humans. Many cultures around the world enjoy eating various types of 软体动物, such as mussels, oysters, and calamari. These animals also play critical roles in their ecosystems; for example, bivalves like clams and oysters help filter water, thereby maintaining the health of aquatic environments.Despite their importance, 软体动物 face numerous threats, primarily due to human activities. Overfishing, habitat destruction, and pollution have led to declines in many populations. The introduction of invasive species has also disrupted local ecosystems, further threatening native 软体动物 species. Conservation efforts are crucial to protect these remarkable creatures and their habitats.In conclusion, 软体动物 are a vital component of our planet's biodiversity. Their unique adaptations, ecological roles, and contributions to human culture make them an essential subject of study in biology and environmental science. Understanding and protecting 软体动物 can lead to better conservation practices and a healthier ecosystem for future generations.