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单词 Species barrier
释义

Species barrier

原声例句
VOA常速英语_美洲

It would be devastating if it did jump species barriers.

如果它真的跨越了物种障碍,那将是毁灭性的。

生活大爆炸 第7季

Great news! A raccoon virus just crossed the species barrier and now can infect humans!

好消息! 一种浣熊病毒刚跨越物种屏障,现在可以感染人类啦!

盖茨夫妇访谈录

The ways that humans interact with other species, these viruses are coming across a species barrier whether it's from bats or monkeys or.

人类与其他物种的互动,会让病毒的传播跨越物种间的藩篱,病毒可能会在蝙蝠、猴子等动物身上传播。

中文百科

物种形成 Speciation

(重定向自Species barrier)

物种形成,又称为种化,是演化的一个过程,指生物的物种一分为二的过程。

达尔文在《物种起源》中认为自然选择是物种形成的主导因素, 但一直以来认为是物种形成是随机的。直到生殖隔离的概念提出后, 自然选择在物种形成中的作用才重新受到重视。

英语百科

Speciation 物种形成

(重定向自Species barrier)
Comparison of allopatric, peripatric, parapatric and sympatric speciation
Japanese rice fish
Freshwater angelfish, a cichlid

Speciation is the evolutionary process by which reproductively isolated biological populations evolve to become distinct species. The biologist Orator F. Cook was the first to coin the term 'speciation' for the splitting of lineages or "cladogenesis," as opposed to "anagenesis" or "phyletic evolution" occurring within lineages. Charles Darwin was the first to describe the role of natural selection in speciation. There is research comparing the intensity of sexual selection in different clades with their number of species.

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更新时间:2025/6/23 20:49:43