unfertilized

简明释义

英[ʌnˈfɜːtɪlaɪzd]美[ˌʌnˈfɜːrtəlaɪzd]

adj. 未施肥的；土地不肥沃的；未受精的（unfertilised 的美式拼写）

英英释义

单词用法

同义词

反义词

例句

1.It is showed from vector analysis: N, P and K are deficient in poplar unfertilized and they are limiting factors to poplar.

矢量法营养诊断结果表明：未施肥的杨树各组织N、P、K均为缺乏状态，N、P、K是杨树生长的限制性因素。

2.That unfertilized ovaries were cultured to increase the induction frequency of haploid plantlets is also discussed.

并对来受粉子房培养提高单倍体植株诱导频率进行了初步讨论。

3.A female stores sperm and can determine the sex of each egg she lays by fertilizing it or leaving it unfertilized.

雌性储存精子，可以通过受精或不受精来决定每一个卵细胞的性别。

4.She also included unfertilized plots as a scientific control.

她还把一些不施化肥的地块作为科学控制组。

5.It is showed from vector analysis: N, P and K are deficient in poplar unfertilized and they are limiting factors to poplar.

矢量法营养诊断结果表明：未施肥的杨树各组织N、P、K均为缺乏状态，N、P、K是杨树生长的限制性因素。

6.In these species, fertilized eggs develop into females and unfertilized eggs into males.

在这些物种中，受精卵发育为雌性，未受精卵发育为雄性。

7.In unfertilized condition, under light intensity of 2000 Lux, the morbidity was higher than that of 1000 Lux.

在不加肥条件下，光照强度2000米烛的幼孢子体，发病率高于1000米烛；

8.In the unfertilized egg, the substances are inactive and are not distributed homogeneously.

在未受精卵中，这些物质是不活跃的，而且分布不均匀。

9.In some species, unfertilized eggs can develop into new organisms through parthenogenesis.

在某些物种中，未受精卵子可以通过孤雌生殖发育成新生物。

10.The scientist studied the behavior of unfertilized eggs in the laboratory.

科学家在实验室研究未受精卵子的行为。

11.Farmers often discard unfertilized seeds to ensure better crop yields.

农民通常会丢弃未受精种子，以确保更好的作物产量。

12.The biologist explained how unfertilized eggs are crucial for understanding reproductive health.

生物学家解释了未受精卵子在理解生殖健康方面的重要性。

13.After observing the fish, they noted that the unfertilized eggs were still viable for a few days.

在观察鱼类后，他们注意到未受精卵子在几天内仍然是可存活的。

作文

In the realm of biology, the concept of reproduction is fundamental to the continuation of species. One interesting aspect of this process is the distinction between fertilized and unfertilized eggs. Understanding these terms can provide insight into various reproductive strategies employed by different organisms. For instance, in many species, females produce a significant number of eggs, but not all of them are fertilized. The unfertilized eggs serve various purposes in the ecological and biological context.To illustrate this, let's consider the life cycle of frogs. Female frogs often lay hundreds of eggs in a single spawning event. These eggs are typically laid in water, where they are exposed to environmental factors and potential predators. Among these eggs, some will be fertilized by male frogs, while others may remain unfertilized. The presence of unfertilized eggs can help ensure that there is a greater chance of survival for the fertilized ones, as the sheer number of eggs can overwhelm predators, allowing more offspring to reach maturity.Moreover, unfertilized eggs can also play a role in the genetic diversity of a population. In certain species, females may release both fertilized and unfertilized eggs as a strategy to increase genetic variation among their offspring. This can be particularly important in changing environments, where having a diverse gene pool can enhance the resilience of the population.In plants, the concept of unfertilized seeds can also be observed. Many flowering plants have mechanisms that allow them to produce seeds without fertilization, a process known as apomixis. This allows plants to reproduce asexually, creating clones of themselves. While unfertilized seeds may not contribute to genetic diversity, they can be advantageous in stable environments where the existing genotype is well adapted to local conditions.The implications of unfertilized gametes extend beyond the biological realm into agriculture and conservation. For example, understanding how certain crops produce unfertilized seeds can influence farming practices aimed at maximizing yield. Farmers might select for plant varieties that produce more unfertilized seeds, which can then be collected and planted to ensure consistent crop production.In conclusion, the term unfertilized refers to eggs or seeds that have not undergone fertilization, yet they hold significant value in the study of biology and ecology. Whether in the context of animal reproduction or plant propagation, unfertilized gametes contribute to the complex web of life. They serve as a testament to the diverse strategies that organisms employ to survive and thrive in their environments. By studying these processes, we gain a deeper appreciation for the intricacies of life and the myriad ways in which species adapt to their surroundings.

在生物学领域，繁殖的概念对于物种的延续至关重要。这个过程中的一个有趣方面是受精卵和未受精卵之间的区别。理解这些术语可以提供对不同生物体采用的各种繁殖策略的洞察。例如，在许多物种中，雌性通常会产生大量卵子，但并非所有卵子都被受精。未受精的卵子在生态和生物学背景中起着多种作用。为了说明这一点，我们来看青蛙的生命周期。雌性青蛙通常在一次产卵事件中产下数百个卵子。这些卵子通常在水中产下，受到环境因素和潜在捕食者的影响。在这些卵子中，一些将被雄性青蛙受精，而其他的可能保持未受精。未受精卵子的存在可以帮助确保受精卵的存活几率更高，因为大量的卵子可以淹没捕食者，从而使更多的后代能够成熟。此外，未受精的卵子也可能在种群的遗传多样性中发挥作用。在某些物种中，雌性可能释放受精卵和未受精卵子，作为增加后代遗传变异的策略。这在不断变化的环境中尤为重要，因为拥有多样的基因库可以增强种群的适应力。在植物中，也可以观察到未受精种子的概念。许多开花植物具有机制，可以在不受精的情况下产生种子，这一过程称为无配生殖。这使得植物能够无性繁殖，创造出自己的克隆。虽然未受精种子可能不会促进遗传多样性，但它们在稳定的环境中可以是有利的，因为现有基因型非常适应当地条件。未受精配子的重要性超越了生物学领域，还涉及农业和保护。例如，了解某些农作物如何产生未受精种子可以影响旨在最大化产量的农业实践。农民可能会选择产生更多未受精种子的植物品种，这些种子可以收集并播种，以确保一致的作物生产。总之，未受精这一术语指的是未经过受精的卵子或种子，但它们在生物学和生态学研究中具有重要价值。无论是在动物繁殖还是植物繁殖的背景下，未受精配子都为生命的复杂网络做出了贡献。它们证明了生物体为在其环境中生存和繁衍而采用的多样化策略。通过研究这些过程，我们对生命的复杂性以及物种适应其环境的多种方式有了更深刻的认识。