coalescent

coalescent的音标为[kəʊəlesənt]，意思是聚合成一团。其速记技巧为：co-表示共同，-alescent表示生长的，所以coalescent表示聚合成一团。

Coalescent的词源可以追溯到拉丁语，意为“合并的，聚拢的”。它的变化形式包括过去式coalesced，过去分词coalesced，现在分词coalescing和第三人称单数coalesces。

相关单词：coal（煤），collect（收集），aggregation（聚集），agglomerate（聚集），congregate（集合），coagulation（凝结），agglomeration（结块），fusion（熔合），converge（汇聚）和convergence（汇聚）。这些单词都与聚集或合并的概念有关，与coalescent有密切联系。例如，coal和collect都与收集和聚集相关的物品有关，而agglomerate和agglomeration则与将物品聚集在一起的过程有关。

Coalescent在生物学中常用于描述种群遗传学中的事件，如两个或多个种群合并成一个单一的种群的过程。这个词在描述物种分布和进化过程时非常有用。

常用短语：

1. coalescent with

2. coalescent process

3. coalescent model

4. coalescent theory

5. genealogical coalescence

6. coalescent time

7. coalescent events

双语例句：

1. The two species are thought to have coalesced recently. （这两个物种被认为最近才发生过合并。）

2. The coalescent process is a fundamental tool in population genetics. （聚类过程是遗传学中一个基本工具。）

3. The coalescent theory explains how genealogies become more and more similar over time. （聚类理论解释了家谱如何随着时间的推移变得越来越相似。）

4. The coalescent process is a mathematical model of how genetic variation accumulates within a population. （聚类过程是一个数学模型，用于解释种群内遗传变异如何积累。）

5. The coalescent events in the genealogical tree represent the time when two branches of the tree merged together. （家谱树中的聚类事件代表了树上的两个分支合并的时间。）

6. The coalescent process is a powerful tool for studying the history of human populations. （聚类过程是研究人类种群历史的有力工具。）

7. The coalescent theory has been widely used in studying the evolution of species and populations. （聚类理论已被广泛应用于物种和种群演化的研究。）

英文小作文：

Coalescent Theory and Its Applications

Coalescent theory is a mathematical framework that has been widely used in studying the history of species and populations. It provides a way to understand how genetic variation accumulates within a population and how different species or populations may have evolved over time.

The theory is based on a mathematical model of how genetic information is transmitted through generations and how different branches of the family tree may merge over time. Through this model, we can study the patterns of genetic variation and infer the history of population dynamics.

Coalescent theory has been used to study topics such as the spread of diseases, the origin and evolution of species, and the demographic history of human populations. It has also been applied to other fields such as conservation biology and ecology, where it can be used to understand how populations respond to environmental changes and other factors.

Coalescent theory is a powerful tool that can provide insights into the complex processes of evolution and population dynamics. Its wide range of applications demonstrates its value in addressing fundamental questions in biology and other related fields.