百度试题 结果1 题目The theory of evolution explains how species change ___ time. A. over B. in C. on D. at 相关知识点: 试题来源: 解析 A。“over time”表示“随着时间的推移”,符合语境。反馈 收藏
The study of how species change over time is___. A. evolutionary biology B. biology C. chemistry D. physics 相关知识点: 试题来源: 解析 A。本题考查进化生物学的英文表达。选项 B“biology”是生物学;选项 C“chemistry”是化学;选项 D“physics”是物理。只有选项 A“evolutionary biology”是进化...
For thousands of years, people wond-ered. In the 1840s, one naturalist (博物学家) had an idea. His name was Charles Darwin. He spent his whole life studying animals and insects. Darwin thought that new species developed slowly, as populations of animals change over time.Not individual ...
We investigated to what extent the plants grown from seeds extracted from soil seed bank differed genetically to mature aboveground plants in experimental populations of A. tatarica over two successive years. At each of five plots 50 aboveground plants and 50 plants extracted from seeds stored in ...
It is a natural process of animal species to become extinct (e.g. dinosaurs, dodos etc.). There is no reason why people should try to stop this from happening. Do you agree or disagree? Give reasons for your answer and include any relevant examples from your own knowledge or experience....
Citation: Vandermeer, J. (2010) How Populations Grow: The Exponential and Logistic Equations. Nature Education Knowledge 3(10):15What are the underlying principles of how populations change over time? Two basic principles are involved, the idea of exponential growth and its ultimate control....
Like other species, we are the products of millions of years of adaptation. Now we're taking matters into our own hands.
Hybridization isn’t as rare as you think, and it’s a tactic some animals can use to weather global warming
they would kill off the host organisms they live on. But we're pretty sure that the populations of many agnostids were in fact very large. We can tell because for many species we've been able to find vast amounts of fossilized individuals. So, the great size of agnostid populations seems...
大学英语作文:How to Protect The Endangered Species in The World 2 In the intricate web of life, every species plays a vital role, contributing to the balance and diversity of our planet. However, the relentless march of human progress, coupled with environmental degradation and climate change, ...