vivipary

简明释义

英[ˈvɪvɪpəri]美[ˈvɪvɪperi]

n. [植] 胎萌（种子未脱离母体以前发芽）

英英释义

单词用法

同义词

反义词

例句

1.Vivipary was observed in the seeds of' Autumn mango'.

在“秋芒”种子中直接观察到胎萌现象。

2.Mangroves possess distinctive vivipary. Vivipary is divided into two types:cryptovivipary and exposed vivipary.

红树植物具有特殊的胎生现象，胎生分为显胎生和隐胎生两种。

3.Vivipary in mangrove plants is an adaptation to the integrated stresses of salt, waterlogging and tide, but not any single stress.

红树植物的胎生现象是对潮间带盐胁迫、淹水、土壤缺氧和潮水冲击等综合生境的适应，而不是单独其中一种胁迫因子的适应。

4.Vivipary in mangrove plants is an adaptation to the integrated stresses of salt, waterlogging and tide, but not any single stress.

红树植物的胎生现象是对潮间带盐胁迫、淹水、土壤缺氧和潮水冲击等综合生境的适应，而不是单独其中一种胁迫因子的适应。

5.In mammals, vivipary is the dominant reproductive strategy, allowing for more complex development of the fetus inside the mother.

在哺乳动物中，vivipary是主要的繁殖策略，使胎儿能够在母体内更复杂地发育。

6.The study of vivipary in plants helps scientists understand how some species can adapt to their environments by nurturing seeds within their tissues.

对植物中vivipary的研究帮助科学家理解某些物种如何通过在其组织内滋养种子来适应环境。

7.Some species of frogs demonstrate vivipary, where the eggs develop into tadpoles inside the female's body before being born.

某些青蛙种类表现出vivipary，即卵子在雌性体内发育成蝌蚪后再出生。

8.Certain reptiles exhibit vivipary, which is quite rare among their kind, providing them with a survival advantage in harsh environments.

某些爬行动物表现出vivipary，这在它们中间相当少见，为它们在恶劣环境中提供了生存优势。

9.The process of reproduction in some species of sharks is known as vivipary, which means they give birth to live young instead of laying eggs.

一些鲨鱼的繁殖过程被称为vivipary，这意味着它们生下活幼崽而不是产卵。

作文

Vivipary is a fascinating reproductive strategy observed in certain species of animals and plants. Unlike oviparous organisms that lay eggs, viviparous organisms give birth to live young. This process not only highlights the diversity of life on Earth but also illustrates the various adaptations that organisms have developed to survive in their environments. In this essay, I will explore the concept of vivipary (胎生) in different species, its advantages, and its significance in the study of biology.To begin with, vivipary (胎生) is most commonly associated with mammals, including humans. In mammals, the developing embryo is nourished directly by the mother through a placenta. This connection allows for a more efficient transfer of nutrients and oxygen, leading to healthier offspring. The ability to give birth to live young provides several advantages. For instance, it reduces the risk of predation on eggs, as the young are protected within the mother's body until they are fully developed. Additionally, live birth allows for better environmental adaptation, as the mother can choose the right time and conditions for delivery.However, vivipary (胎生) is not limited to mammals. Certain reptiles, such as some species of snakes and lizards, also exhibit this reproductive strategy. These reptiles have evolved the ability to retain their eggs inside their bodies until they hatch, giving birth to live young. This adaptation can be particularly beneficial in harsh environments where finding a safe place to lay eggs may be challenging. By retaining the eggs within their bodies, these reptiles can ensure that their young are born in a more favorable environment, increasing their chances of survival.Plants also demonstrate a form of vivipary (胎生), although it is less common. Some species, like certain mangroves, produce seeds that germinate while still attached to the parent plant. These seeds develop into seedlings before they detach and begin to grow independently. This form of reproduction allows the seedlings to establish themselves in a suitable environment, reducing the risk of being washed away or eaten by herbivores. In this way, vivipary (胎生) in plants serves as a protective mechanism that enhances the survival of the next generation.The study of vivipary (胎生) has significant implications for understanding evolution and adaptation. By examining how different species have evolved this reproductive strategy, scientists can gain insights into the pressures that drive evolutionary change. For example, in environments where predation is high, species that give birth to live young may have a survival advantage over those that lay eggs. This understanding can help researchers predict how species might adapt to changing environments in the future.In conclusion, vivipary (胎生) is a remarkable reproductive strategy that showcases the diversity of life on our planet. From mammals to reptiles and even some plants, the ability to give birth to live young offers numerous advantages that enhance survival. As we continue to study vivipary (胎生) and its implications in various species, we deepen our understanding of biological processes and the intricate relationships between organisms and their environments. This knowledge not only enriches our appreciation of nature but also informs conservation efforts aimed at protecting the diverse forms of life that inhabit our world.