survival of the fittest
biological evolution
genetic variation
adaptation to environment
1. Natural selection drives the evolution of many species.
自然选择推动了许多物种的进化。
2. The mechanism of natural selection is a cornerstone of biology.
自然选择机制是生物学的基石。
3. Environmental changes can trigger natural selection.
环境变化可能会引发自然选择。
A: How does evolution actually work?
A：进化究竟是如何运作的？
B: It is primarily driven by natural selection.
B：它主要是由自然选择驱动的。
1) 达尔文进化论的核心机制
2) 生物适应环境的过程
3) 适者生存的自然现象
1. 自然选择
e.g.
Natural selection helps organisms adapt to their surroundings.
自然选择帮助生物适应它们周围的环境。
noun phrase
1. The process whereby organisms better adapted to their environment tend to survive and produce more offspring.
Synonym: evolution