homeotherm

简明释义

英[/ˈhoʊmiˌθɜrm/]美[/ˈhoʊmiˌθɜrm/]

n. [动]恒温动物（等于 homoiotherm）

英英释义

单词用法

同义词

反义词

例句

1.It is well know that the preoptic and anterior hypothalamus is the heat regulating center of homeotherm.

下丘脑视前区和下丘脑前区为恒温动物的体温调节中枢。

2.It is well know that the preoptic and anterior hypothalamus is the heat regulating center of homeotherm.

下丘脑视前区和下丘脑前区为恒温动物的体温调节中枢。

3.The concept of being a homeotherm is crucial for understanding animal physiology.

作为恒温动物的概念对于理解动物生理学至关重要。

4.As a homeotherm, humans maintain a stable internal temperature even in extreme weather conditions.

作为一个恒温动物，人类即使在极端天气条件下也能保持稳定的内部温度。

5.Unlike reptiles, which are ectothermic, birds are homeotherms that rely on metabolic heat production.

与爬行动物不同，爬行动物是外温动物，而鸟类是依靠代谢产热的恒温动物。

6.Mammals are typically classified as homeotherms due to their ability to maintain body heat.

哺乳动物通常被归类为恒温动物，因为它们能够维持体温。

7.Birds are a type of homeotherm, which means they can regulate their body temperature regardless of the environment.

鸟类是一种恒温动物，这意味着它们可以调节自己的体温，而不受环境影响。

作文

In the vast realm of biology, the term homeotherm refers to organisms that maintain a stable internal body temperature regardless of external environmental conditions. This characteristic is crucial for the survival and functioning of many species, especially mammals and birds. The ability to regulate body temperature allows homeotherms to thrive in various habitats, from the icy tundras of the Arctic to the sweltering deserts of Africa. Homeothermy is a fascinating adaptation that has evolved over millions of years. For example, humans, as homeotherms, have an average body temperature of around 98.6 degrees Fahrenheit (37 degrees Celsius). This constant temperature is maintained through various physiological processes such as thermoregulation, where the body balances heat production and heat loss. When the environment is cold, homeotherms generate more heat through metabolic processes and shivering, while in hot conditions, they may sweat or increase blood flow to the skin to dissipate excess heat.The evolutionary advantages of being a homeotherm are significant. Firstly, it allows these organisms to remain active during different times of the day and year, unlike ectothermic animals, which rely on external heat sources and may become sluggish in colder temperatures. This increased activity can lead to better foraging opportunities and improved chances of reproduction. Moreover, homeotherms can inhabit a wide range of environments. For instance, birds migrate thousands of miles to find suitable breeding grounds, thanks to their ability to maintain a consistent body temperature. This adaptability is vital for survival in changing climates and ecosystems. However, being a homeotherm comes with its challenges. The energy expenditure required to maintain a stable body temperature can be substantial. Therefore, homeotherms need to consume more food compared to ectotherms of similar size. This increased metabolic demand can lead to competition for resources, particularly in areas where food is scarce. Additionally, climate change poses a significant threat to homeotherms, as rising temperatures can disrupt their natural habitats and food supply. In conclusion, the concept of homeotherm encapsulates a remarkable aspect of biological adaptation. These organisms, including humans, have developed sophisticated mechanisms to regulate their body temperature, providing them with a competitive edge in diverse environments. Understanding the significance of homeotherms not only highlights the complexity of life on Earth but also emphasizes the importance of conserving their habitats in the face of environmental changes.

在生物学的广阔领域中，术语homeotherm指的是那些无论外部环境条件如何都能维持稳定内部体温的生物。这一特征对于许多物种的生存和功能至关重要，尤其是哺乳动物和鸟类。调节体温的能力使得homeotherms能够在各种栖息地中繁衍生息，从北极的冰冻苔原到非洲的酷热沙漠。恒温性是一种在数百万年中进化而来的迷人适应。例如，人类作为homeotherms，平均体温约为华氏98.6度（摄氏37度）。这一恒定温度通过各种生理过程如热调节来维持，身体平衡热量的产生和散失。当环境寒冷时，homeotherms通过代谢过程和颤抖产生更多的热量，而在炎热的条件下，他们可能会出汗或增加血液流向皮肤以散发多余的热量。作为homeotherm的进化优势是显著的。首先，它使这些生物能够在一天和一年中的不同时间保持活跃，不像依赖外部热源的变温动物，后者在较冷的温度下可能变得迟缓。这种增加的活动可以导致更好的觅食机会和提高繁殖的机会。此外，homeotherms能够栖息在广泛的环境中。例如，鸟类迁徙数千英里寻找合适的繁殖地，这要归功于它们维持一致体温的能力。这种适应性对于在变化的气候和生态系统中生存至关重要。然而，作为homeotherm也面临着挑战。维持稳定体温所需的能量消耗可能是巨大的。因此，与相似体型的变温动物相比，homeotherms需要消耗更多的食物。这种增加的代谢需求可能导致资源竞争，尤其是在食物稀缺的地区。此外，气候变化对homeotherms构成了重大威胁，因为气温上升可能会打乱它们的自然栖息地和食物供应。总之，homeotherm的概念概括了生物适应性的一个显著方面。这些生物，包括人类，发展出复杂的机制来调节其体温，使其在多样的环境中具有竞争优势。理解homeotherms的重要性不仅突显了地球生命的复杂性，还强调了在面对环境变化时保护其栖息地的重要性。