sagittate

简明释义

英[ˈsædʒɪˌteɪt]美[ˈsædʒɪˌteɪt]

adj. 箭头形的；镞型的

英英释义

单词用法

同义词

反义词

例句

1.European sorrel with large slightly acidic sagittate leaves grown throughout north temperate zone for salad and spring greens.

有巨大微酸箭头形叶子的欧洲酸模，遍布于北温带地区，做色拉和春季草地。

2.European sorrel with large slightly acidic sagittate leaves grown throughout north temperate zone for salad and spring greens.

有巨大微酸箭头形叶子的欧洲酸模，遍布于北温带地区，做色拉和春季草地。

3.The leaves of the plant are shaped like arrows, which is why they are described as sagittate.

这种植物的叶子形状像箭头，因此被描述为箭头形。

4.In botany, a sagittate leaf has lobes that extend downward, resembling the shape of an arrow.

在植物学中，箭头形的叶子有向下延伸的叶片，类似于箭的形状。

5.The sagittate design of the arrowhead makes it efficient for hunting.

箭头的箭头形设计使其在狩猎中非常有效。

6.Certain species of fish have sagittate fins that help them navigate swiftly through water.

某些鱼类具有箭头形的鳍，帮助它们在水中迅速游动。

7.The paleontologist noted the sagittate shape of the fossilized leaves in the ancient sediment.

古生物学家注意到古代沉积物中化石叶子的箭头形。

作文

The term sagittate, derived from the Latin word 'sagitta,' meaning arrow, is primarily used in biological contexts to describe certain shapes or forms of organisms. In nature, many plants and animals exhibit sagittate characteristics that allow them to adapt and thrive in their environments. For example, the leaves of the arrowhead plant are distinctly sagittate, resembling arrows with a pointed tip and a broad base. This unique shape not only helps in the plant's identification but also plays a crucial role in water drainage and sunlight capture, enhancing its survival in aquatic ecosystems. Moreover, the concept of sagittate can extend beyond botany into the realm of zoology. Certain fish species possess sagittate features in their body structure, which aids in their swimming efficiency. The streamlined, arrow-like shape allows these fish to navigate swiftly through water, evading predators and capturing prey effectively. This adaptation highlights the significance of sagittate forms in evolutionary biology, showcasing how specific shapes can confer advantages in various habitats. In the field of paleontology, researchers often encounter fossils with sagittate characteristics, providing insights into the morphology of ancient species. By studying these fossils, scientists can reconstruct the evolutionary pathways of organisms and understand how they adapted to changing environments over time. The sagittate shape of some dinosaur teeth, for instance, suggests a carnivorous diet, indicating their predatory behavior and ecological roles during their existence. The use of sagittate extends into taxonomy as well, where biologists categorize and describe species based on their morphological traits. The presence of sagittate leaves or body parts can be an essential criterion in identifying and classifying new species. This classification system is vital for biodiversity studies, conservation efforts, and understanding ecosystem dynamics. In summary, the term sagittate encapsulates more than just a descriptive adjective; it represents a fundamental aspect of biological diversity and adaptation. Whether in the context of plants, animals, or fossils, sagittate shapes reveal critical information about the relationships between organisms and their environments. As we continue to explore the natural world, understanding terms like sagittate becomes increasingly important in appreciating the complexity and beauty of life on Earth. By recognizing the significance of such shapes, we can better comprehend the evolutionary strategies that have shaped the diverse forms of life we see today.

术语箭头形源自拉丁词'sagitta'，意为箭，主要用于生物学背景中描述某些生物的形状或形式。在自然界中，许多植物和动物表现出箭头形特征，使它们能够适应并在其环境中茁壮成长。例如，箭头植物的叶子明显呈现箭头形，类似于尖头和宽底的箭。这种独特的形状不仅有助于植物的识别，还在水排放和阳光捕获中发挥着至关重要的作用，增强了其在水生生态系统中的生存能力。 此外，箭头形的概念可以扩展到动物学领域。某些鱼类在其体型结构中具有箭头形特征，这有助于提高其游泳效率。流线型的箭头形状使这些鱼能够在水中迅速导航，躲避捕食者并有效捕捉猎物。这种适应性突显了箭头形形式在进化生物学中的重要性，展示了特定形状如何在各种栖息地中赋予优势。 在古生物学领域，研究人员经常遇到具有箭头形特征的化石，这为了解古代物种的形态提供了见解。通过研究这些化石，科学家可以重建生物的进化路径，并理解它们如何适应随时间变化的环境。例如，一些恐龙牙齿的箭头形表明肉食性饮食，指示它们在存在期间的捕食行为和生态角色。 箭头形的使用也延伸到分类学中，生物学家根据形态特征对物种进行分类和描述。箭头形的叶子或身体部位的存在可能是识别和分类新物种的重要标准。这一分类系统对于生物多样性研究、保护工作以及理解生态系统动态至关重要。 总之，术语箭头形不仅仅是一个描述性形容词；它代表了生物多样性和适应性的基本方面。无论是在植物、动物还是化石的背景下，箭头形形状揭示了关于生物与其环境之间关系的重要信息。随着我们继续探索自然世界，理解像箭头形这样的术语在欣赏地球上生命的复杂性和美丽时变得越来越重要。通过认识这些形状的重要性，我们可以更好地理解塑造我们今天所看到的生命多样性的进化策略。