aboral pole

简明释义

反口极

英英释义

例句

1.The aboral pole 腹侧极 serves as a reference point for measuring the symmetry of echinoderms.

在测量棘皮动物的对称性时，aboral pole 腹侧极作为参考点。

2.During dissection, students are instructed to identify the aboral pole 腹侧极 of the organism first.

在解剖过程中，学生们被指示首先识别生物的aboral pole 腹侧极。

3.In a starfish, the mouth is located at the oral pole, while the opposite end is referred to as the aboral pole 腹侧极.

在海星中，嘴位于口侧极，而相对的端被称为aboral pole 腹侧极。

4.The aboral pole 腹侧极 of the jellyfish is where the gonads are located.

水母的aboral pole 腹侧极是生殖腺所在的位置。

5.When observing sea urchins, scientists often note the characteristics of the aboral pole 腹侧极 for identification purposes.

在观察海胆时，科学家通常注意aboral pole 腹侧极的特征以便于识别。

作文

In the study of biology, particularly in the field of marine biology, one comes across various terms that describe the anatomy and structure of organisms. One such term is the aboral pole, which refers to the end of a radially symmetrical organism that is opposite to the mouth. This concept is crucial for understanding the morphology of certain marine animals, especially echinoderms like starfish and sea urchins. The aboral pole plays a significant role in the overall anatomy and function of these creatures, influencing their behavior, feeding habits, and reproduction.To elaborate, let’s consider the starfish, which is a quintessential example of an organism that exhibits radial symmetry. When observing a starfish, one can easily identify its mouth, located on the underside, known as the oral surface. The aboral pole, therefore, is located on the upper side of the starfish, where one might find the madreporite—a sieve-like structure that plays a vital role in the water vascular system of the starfish. This water vascular system is essential for locomotion, feeding, and even respiration, making the aboral pole a critical aspect of the starfish's biology.The significance of the aboral pole extends beyond just structural identification; it also has ecological implications. For instance, the positioning of the aboral pole can affect how these organisms interact with their environment. In many cases, the aboral pole is equipped with sensory structures that help the organism detect changes in its surroundings, such as light, temperature, and the presence of predators or prey. This sensory capability is vital for survival, as it allows the organism to respond effectively to environmental cues.Moreover, the concept of the aboral pole can also be applied in comparative anatomy. By examining the aboral pole of different species within the echinoderm family, scientists can gain insights into evolutionary relationships and adaptations. For example, some sea cucumbers have a less pronounced aboral pole compared to starfish, indicating a shift in their ecological niches and feeding strategies. Such comparisons not only enhance our understanding of individual species but also contribute to the broader knowledge of evolutionary biology.In addition to its biological importance, the aboral pole serves as a reminder of the intricate design of nature. The way organisms are structured, with each part serving a specific function, showcases the complexities of life forms that have evolved over millions of years. Understanding terms like aboral pole helps us appreciate the diversity and adaptability of life on Earth.In conclusion, the aboral pole is more than just a biological term; it encapsulates the essence of structural functionality in radially symmetrical organisms. From the starfish to sea urchins, the aboral pole plays a pivotal role in their anatomy, ecology, and evolution. As we continue to explore the wonders of marine biology, recognizing and understanding terms like aboral pole will deepen our appreciation for the complexity of life and the interconnectedness of all living beings.

在生物学的研究中，特别是在海洋生物学领域，人们会遇到许多描述生物解剖和结构的术语。其中一个术语是腹极，指的是与口部相对的放射对称生物的一端。这个概念对于理解某些海洋动物的形态非常重要，尤其是像海星和海胆这样的棘皮动物。腹极在这些生物的整体解剖和功能中起着重要作用，影响着它们的行为、觅食习惯和繁殖。为了详细说明，让我们考虑海星，这是一个典型的展示放射对称性的生物。当观察海星时，可以很容易地识别出其位于底部的口，称为口面。因此，腹极位于海星的上侧，在那里可以找到母孔——一个筛状结构，对于海星的水管系统至关重要。这个水管系统对于运动、觅食甚至呼吸都是必要的，使得腹极成为海星生物学的关键方面。腹极的重要性不仅限于结构识别；它还有生态意义。例如，腹极的位置可以影响这些生物与环境的互动。在许多情况下，腹极配备了感官结构，帮助生物检测周围环境的变化，例如光线、温度以及捕食者或猎物的存在。这种感知能力对于生存至关重要，因为它使生物能够有效地响应环境信号。此外，腹极的概念也可以应用于比较解剖学。通过检查不同棘皮动物家族中物种的腹极，科学家可以获得关于进化关系和适应性的见解。例如，一些海参的腹极相比于海星不那么明显，这表明它们在生态位和觅食策略上发生了变化。这种比较不仅增强了我们对个体物种的理解，还为更广泛的进化生物学知识做出了贡献。除了生物学的重要性，腹极还提醒我们自然设计的复杂性。生物的结构方式，每个部分都发挥特定功能，展示了经过数百万年演化而成的生命形式的复杂性。理解像腹极这样的术语有助于我们欣赏地球上生命的多样性和适应性。总之，腹极不仅仅是一个生物学术语；它概括了放射对称生物中结构功能的本质。从海星到海胆，腹极在它们的解剖、生态和进化中发挥着关键作用。随着我们继续探索海洋生物学的奇迹，认识和理解像腹极这样的术语将加深我们对生命复杂性以及所有生命体之间相互联系的欣赏。