viviparity

简明释义

英[vɪvɪˈpærɪti]美[ˌvɪvɪˈpærətɪ]

n. 胎生；母体发芽

英英释义

单词用法

同义词

反义词

例句

1.The gestation of demand cone of broad sense is led by technological innovation. That is that continuous viviparity is promoted technological innovation.

广义需求圆锥体的大中生小的孕育是由技术创新导致的，亦即其不断的“胎生”是由技术创新推动的。

2.The gestation of demand cone of broad sense is led by technological innovation. That is that continuous viviparity is promoted technological innovation.

广义需求圆锥体的大中生小的孕育是由技术创新导致的，亦即其不断的“胎生”是由技术创新推动的。

3."Viviparity has evolved about a hundred times in reptiles," said herpetologist Rick Shine of the University of Sydney in Australia.

澳大利亚悉尼大学的爬虫学者瑞克.谢利（RickShine）说，“胎生在爬虫类动物中有了成百倍的进化，所以它们不再多产也很正常。

4.Every birds bird is oviparous, and it is viviparity however.

凡禽鸟都是卵生，而它却是胎生的。

5.Sharks display three ways to bear their young, varying by species, oviparity, viviparity and ovoviviparity.

鲨鱼有三种繁殖方式，它们的繁殖方式因物种而异，分别是卵胎生、胎生和卵胎生。

6.Many mammals exhibit viviparity, which means they give birth to live young instead of laying eggs.

许多哺乳动物表现出胎生，这意味着它们生下活的幼崽而不是下蛋。

7.The evolution of viviparity in certain reptiles has allowed them to thrive in diverse environments.

某些爬行动物中胎生的进化使它们能够在多样的环境中繁荣。

8.In fish, viviparity can be seen in species like guppies, where the female gives birth to live fry.

在鱼类中，像孔雀鱼这样的物种可以看到胎生，雌性会生下活的小鱼。

9.The study of viviparity helps scientists understand reproductive strategies across different species.

对胎生的研究帮助科学家理解不同物种的繁殖策略。

10.Some amphibians also display viviparity, adapting to their environments in unique ways.

一些两栖动物也表现出胎生，以独特的方式适应它们的环境。

作文

Viviparity is a fascinating reproductive strategy observed in many animal species, including mammals, some reptiles, and even certain fish. This term refers to the biological process where embryos develop inside the body of the mother, rather than outside in eggs. The word itself is derived from the Latin 'vivus,' meaning 'alive,' and 'parere,' meaning 'to give birth.' In essence, viviparity (胎生) signifies that the young are born alive and are often more developed than those produced by oviparous species, which lay eggs. In the animal kingdom, viviparity (胎生) offers several advantages. For instance, it provides the developing embryo with a stable environment, protecting it from external threats such as predators and environmental fluctuations. The mother can also regulate the internal conditions, ensuring optimal temperature and nutrient supply through a placenta or similar structure. This close maternal connection often results in higher survival rates for the offspring, as they receive direct nourishment and care during critical stages of development. Mammals are the most well-known group exhibiting viviparity (胎生). All mammals, except for monotremes like the platypus and echidna, give birth to live young. The evolution of this reproductive method has been crucial for the success of mammals, allowing them to thrive in diverse environments. For example, in species such as humans, the gestation period allows for significant brain development, which is essential for survival after birth. Interestingly, viviparity (胎生) is not limited to mammals. Certain reptiles, like some species of snakes and lizards, exhibit this reproductive strategy as well. These reptiles have adapted to their environments, where laying eggs may pose a risk due to predation or harsh weather conditions. By giving birth to live young, these species enhance the chances of their offspring's survival. Moreover, some fish, such as guppies and certain sharks, are also viviparous. They provide nutrients to their developing young through a structure similar to a placenta. This adaptation allows them to inhabit environments where egg-laying might be less advantageous, such as in areas with high predation pressure. The study of viviparity (胎生) extends beyond mere reproductive strategies; it also has implications for understanding evolutionary biology and ecology. Researchers examine how different species adapt their reproductive methods to thrive in specific habitats. For instance, scientists have observed that in environments where resources are scarce, viviparity (胎生) may confer a selective advantage by ensuring that fewer, but more viable, offspring are produced. In conclusion, viviparity (胎生) is a remarkable reproductive strategy that showcases the diversity of life on Earth. It highlights the adaptations that various species have developed to ensure the survival of their young in a wide range of environments. Understanding this concept not only enriches our knowledge of biology but also emphasizes the intricate connections between species and their habitats. As we continue to study the nuances of reproductive strategies like viviparity (胎生), we gain deeper insights into the evolutionary processes that shape the natural world.