Evolution in a Ring

So what exactly is climate? This first installment of a six-part series introduces the concept of climate using real-world data tables and topographic maps. The timely lesson includes a comprehensive overview of climate, as well as...

AP biology buffs define vocabulary terms and answer critical-thinking questions about evolutionary trends. They compare macroevolution to microevolution, differentiate ploidy possibilities, explain isolation barriers, and more....

Looking at evolution in detail, this thorough worksheet has complex questions requiring details and explanations of natural selection and diversity. Various examples of biological characteristics are available, and students choose the...

Just over 1/3 of Americans reject evolution, insisting all living things have existed in their present form for all of time. The video offers multiple types of support for evolution. It discusses the evidence from fossils, anatomy,...

Humans share about 50% of their genes with a banana. In the video, scholars analyze the scientific evidence for evolution. The instructor spends time discussing Darwin and biogeography, fossils, and homologous structures. Scholars then...

Ring species are a part of the speciation process which helps to understand evolution. Discover what we have to learn from ring species in this article.

How does something remain the same in order to change? The video discusses homeostatic evolution from both the continuity and changing perspectives. An analysis of the excretory system in flatworms, earthworms, and vertebrates shows...

Defines the term species and the origin of the concept. Provides estimates of numbers of species in different biological categories, explains what endangered species are, and what ring species are. (Published: May 26, 2010)

Open with a discussion on weather and climate and then explain how tree rings can provide scientists with information about the earth's past climate. Pupils analyze graphics of simulated tree rings from various US locations for the...

Get your class thinking about climate change as a scientific theory. Guided by a handout, emerging earth scientists read articles and take notes about glaciers and sea ice. To conclude, they write an evaluation of the evidence for...