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Dftd. <em>En Garde!</em> Animal Structures and What They Mean. Teaching Notes Case teaching notes are password-protected and access to them is limited to paid subscribed instructors.

<em>En Garde!</em> Animal Structures and What They Mean

To become a paid subscriber, begin the process by registering here. Teaching notes are intended to help teachers select and adopt a case. They typically include a summary of the case, teaching objectives, information about the intended audience, details about how the case may be taught, and a list of references and resources.

Download Teaching Notes Answer Key Answer keys for the cases in our collection are password-protected and access to them is limited to paid subscribed instructors. Get Answer Key Videos The following video(s) are recommended for use in association with this case study. World’s Weirdest- Narwhals A narwhal's tusk is actually a tooth that can reach 10 feet in length, and scientists have numerous theories about its powers and purpose. Battle of the Fiddler Crabs This video shows actual footage of two fiddler crabs (Uca stylifer) fighting on a beach.

Caterpillars. Speciation: An Illustrated Introduction. Unusual Fish that 'Walks' Holds Clues to Animal Evolution. An unusual species of fish that can walk and breathe air shows that these animals may be more capable of adapting to life on land than previously thought, researchers say.

Unusual Fish that 'Walks' Holds Clues to Animal Evolution

The new findings may help explain how the ancient fish ancestors of humans colonized the land, the researchers said. Evolution: Videos for Students: Evolving Ideas. Evidence-of-Evolution-Lab. Homo naledi: New species of human ancestor discovered. Berger, a professor at the University of the Witwatersrand in Johannesburg, South Africa, had unearthed some major finds before.

Homo naledi: New species of human ancestor discovered

But he knew he had something big on his hands. What he didn't know at the time is that it would shake up our understanding of the progress of human evolution and even pose new questions about our identity. Two years after they were tipped off by cavers plumbing the depths of the limestone tunnels in the Rising Star Cave outside Johannesburg, Berger and his team have discovered what they say is a new addition to our family tree. The team is calling this new species of human relative "Homo naledi," and they say it appears to have buried its dead -- a behavior scientists previously thought was limited to humans. Berger's team came up with the startling theory just days after reaching the place where the fossils -- consisting of infants, children, adults and elderly individuals -- were found, in a previously isolated chamber within the cave.

Almost human but not quite. Evolution. Meet the Grolar Bear - Pacific Standard. I thought it was a joke when I first heard about it two or three years ago: a bear that was part-grizzly, part-polar bear, roaming the land where tundra meets sea ice?

Meet the Grolar Bear - Pacific Standard

People called it the grolar bear, I was told, or sometimes the pizzly bear. Pizzly bear? I thought at the time. Come on. But the hybrid is very real. “We’ve known for decades that, in captivity, grizzly bears and polar bears will hybridize and in fact produce fertile offspring,” says Dr. These days, Kelly is the chief scientist and director of conservation research at the Monterey Bay Aquarium. “It’s important to recognize that polar bears branched off of grizzly bears rather recently in evolutionary terms,” Kelly says, “and when a species splits into two it doesn’t happen overnight. Diseases - Manual - Activity 3, page 1. At a Glance Focus: Students investigate the growth of bacteria in the presence of antibiotics and use the results to explain a case of antibiotic-resistant tuberculosis, presented in an Internet-based interview.

Diseases - Manual - Activity 3, page 1

Major Concepts: The re-emergence of some diseases can be explained by evolution of the infectious agent (for example, mutations in bacterial genes that confer resistance to antibiotics used to treat the diseases). Objectives: After completing this activity, students will be able to explain how antibiotic treatment results in populations of bacteria that are largely resistant to the antibiotic and describe inappropriate and/or questionable uses of antibiotics.

Prerequisite Knowledge: Students should be familiar with bacterial growth and with evolution by natural selection. Introduction In 1943, penicillin was introduced as the "magic bullet" for curing many infectious diseases. Pepper Moths - Home. Biology Corner Evolution page. LAB_Evidence_of_Evolution. Becoming Human PBS Video question. LabBench. Hardy-Weinberg. The Hardy-Weinberg formulas allow scientists to determine whether evolution has occurred.


9-12 teachers' lounge. Teaching materials : 9-12 teachers' lounge :Identify your learning goals At the end of the school year, there are certain conceptual understandings that we want our students to have.

9-12 teachers' lounge

Achieving these learning goals lays the groundwork for more sophisticated understandings as students proceed through their learning experiences. Visualizing life on Earth: data interpretation in evolution. Visualizing life on Earth: data interpretation in evolution by the Understanding Evolution team This pattern might seem obvious.

Visualizing life on Earth: data interpretation in evolution

Understanding Evolution.