spicules

简明释义

英[ˈspɪkjʊlz]美[ˈspɪkjulz]

n. [无脊椎]骨针，针骨（spicule 的复数）；针状结构；冰针；针状冰

英英释义

单词用法

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例句

1.The bony spicules are even, with occasional lacunae containing osteocytes.

骨板连续均一，偶尔可见包含骨细胞的腔隙。

2.You are envisioning just one of thousands of young spicules on the active Sun.

你脑中想象的正是活跃的太阳上数千根新生的针状体之一。

3.As spicules measuring in the tens of thousands of degrees kelvins rise from the chromosphere, the researchers noticed, patches of the corona above flare up at one million to two million degrees.

研究人员注意到，从色球层产生的日珥能达到上万度，日冕上的某些部分甚至能达到一百万至两百万度。

4.The key, it turns out, are called spicules, which vent hot gases, called plasma, from the sun's surface into the corona.

观测证明，（解决这个谜团的）关键是一种叫做针状体的东西，它从太阳的表面向日冕层释放出称为等离子体的高温气体。

5.As spicules measuring in the tens of thousands of degrees kelvins rise from the chromosphere, the researchers noticed, patches of the corona above flare up at one million to two million degrees.

研究人员注意到，从色球层产生的日珥能达到上万度，日冕上的某些部分甚至能达到一百万至两百万度。

6.The new observations are very exciting, but the jury is still out on the importance of spicules in the big scheme of things.

新的发现很让人兴奋，但对针状体在大局上的重要性(这个问题)，大家还是莫衷一是。

7.Certain types of glass sponges have unique spicules made of silica.

某些类型的玻璃海绵具有由二氧化硅制成的独特针状体。

8.The marine biologist studied the role of spicules in the structure of coral reefs.

海洋生物学家研究了针状体在珊瑚礁结构中的作用。

9.In sponges, spicules provide support and deter predators.

在海绵中，针状体提供支持并阻止捕食者。

10.Under the microscope, the intricate patterns of spicules were fascinating to observe.

在显微镜下，针状体的复杂图案令人着迷。

11.The presence of spicules can indicate the health of a marine ecosystem.

存在的针状体可以指示海洋生态系统的健康状况。

作文

In the study of biology and geology, we often encounter various structures that play crucial roles in the functioning of ecosystems and the formation of geological features. One such structure is known as spicules, which are small, spike-like structures found in certain organisms, particularly in sponges and some types of corals. These spicules serve multiple purposes, including providing structural support and defense against predators. Understanding the significance of spicules not only enhances our knowledge of these organisms but also sheds light on broader ecological interactions. Sponges, for instance, are fascinating creatures that lack true tissues and organs. Instead, they rely on a simple body structure supported by a network of spicules. These spicules can be made of silica or calcium carbonate, depending on the species. Their presence allows sponges to maintain their shape and resist the pressures of their aquatic environments. The diversity in the size, shape, and composition of spicules among different sponge species is a testament to the adaptability of life forms in response to their habitats.Moreover, spicules also play a significant role in the ecological dynamics of marine environments. They can influence the sediment structure on the ocean floor, providing habitats for various microorganisms and contributing to nutrient cycling. By forming a complex matrix within the sponge’s body, these spicules create microhabitats that support diverse marine life. This intricate relationship between sponges and their environment highlights the interconnectedness of ecosystems and the importance of every organism in maintaining ecological balance.In addition to their structural functions, spicules also serve as a defense mechanism for sponges. The sharp, pointed nature of these structures can deter potential predators, making it less likely for them to consume the sponge. This evolutionary adaptation showcases how organisms develop physical traits that enhance their chances of survival in competitive environments. For researchers and ecologists, understanding the role of spicules in predator-prey interactions can provide valuable insights into the behavior and ecology of marine species.Beyond sponges, spicules are also present in certain corals, where they contribute to the overall strength and resilience of coral reefs. Coral reefs are vital ecosystems that support an incredible diversity of marine life. The spicules found in corals help to reinforce their structure, allowing them to withstand strong currents and wave action. As climate change poses significant threats to coral reefs, understanding the role of spicules in coral health and stability becomes increasingly important.In conclusion, the study of spicules offers a window into the complexity of biological structures and their ecological implications. From providing structural support to serving as a defense mechanism, these small yet significant features play a vital role in the lives of sponges and corals. As we continue to explore the intricacies of marine ecosystems, the importance of spicules cannot be overlooked, reminding us of the delicate balance that sustains life in our oceans. Through research and conservation efforts, we can better appreciate and protect these remarkable organisms and the environments they inhabit.

在生物学和地质学的研究中，我们经常会遇到各种结构，这些结构在生态系统的运作和地质特征的形成中发挥着至关重要的作用。其中一个这样的结构被称为spicules，它是某些生物体内发现的小刺状结构，尤其是在海绵和某些类型的珊瑚中。这些spicules具有多重用途，包括提供结构支持和防御捕食者。理解spicules的重要性不仅增强了我们对这些生物的认识，也揭示了更广泛的生态互动。例如，海绵是一种迷人的生物，它们缺乏真正的组织和器官。相反，它们依靠由一系列spicules支撑的简单体结构。根据物种的不同，这些spicules可以由二氧化硅或碳酸钙构成。它们的存在使海绵能够保持其形状，并抵抗水生环境的压力。不同海绵物种之间的spicules在大小、形状和组成上的多样性证明了生命形式在应对栖息地时的适应性。此外，spicules在海洋环境的生态动态中也发挥着重要作用。它们可以影响海底的沉积结构，为各种微生物提供栖息地，并有助于营养循环。通过在海绵体内形成复杂的矩阵，这些spicules创造了支持多样化海洋生命的微栖息地。这种海绵与其环境之间的复杂关系突显了生态系统的相互联系，以及每个生物在维持生态平衡中的重要性。除了结构功能外，spicules还作为海绵的防御机制。这些结构的尖锐和指向性可以威慑潜在捕食者，使它们不太可能消耗海绵。这种进化适应展示了生物体如何发展出增强生存机会的物理特征。对于研究人员和生态学家而言，理解spicules在捕食者-猎物互动中的作用，可以为我们提供有关海洋物种行为和生态的重要见解。除了海绵，某些珊瑚中也存在spicules，它们有助于增强珊瑚礁的整体强度和韧性。珊瑚礁是支持惊人多样性的海洋生命的重要生态系统。珊瑚中发现的spicules帮助增强其结构，使其能够承受强流和波浪的冲击。随着气候变化对珊瑚礁构成重大威胁，理解spicules在珊瑚健康和稳定性中的作用变得愈发重要。总之，对spicules的研究为我们提供了一个了解生物结构复杂性及其生态意义的窗口。从提供结构支持到作为防御机制，这些小而重要的特征在海绵和珊瑚的生活中发挥着重要作用。随着我们继续探索海洋生态系统的复杂性，spicules的重要性不容忽视，这提醒我们维持生命在海洋中的微妙平衡。通过研究和保护工作，我们可以更好地欣赏和保护这些非凡的生物及其栖息的环境。