In this online activity, learners discover how random variation influences biological evolution. …
In this online activity, learners discover how random variation influences biological evolution. Biological evolution is often thought of as a process by which adaptation is generated through selection.Œć While it is recognized that random variation underlies the process, emphasis is usually placed on selection and resulting adaptation, leaving a sense that it is selection that drives evolution.Œć This simulation highlights the creative role of random variation, offering a somewhat different perspective: that of evolution as open-ended exploration driven by randomness and constrained by selection, with adaptation as a dynamic, transient consequence rather than an objective.
NASA eClips Our World: Where Do We Find Extremophiles?Video Description: Where do we …
NASA eClips Our World: Where Do We Find Extremophiles?Video Description: Where do we find extremophiles? We look for environments that push the limits for ordinary living organisms. NASA conducts analog testing in these extreme environments to better understand life on Earth and identify the potential for life in the universe. Video Length: 3:25. NASA eClipsTM is a suite of online student-centered, standards-based resources that support instruction by increasing STEM literacy in formal and nonformal settings. These free digital and downloadable resources inform and engage students through NASA-inspired, real-world connections.NASA eClips Our World videos (grades 3-5) help students understand the differences between science (the natural world) and engineering (the designed world). These video segments supplement elementary learning objectives not only in science, technology, engineering and mathematics, but also in reading, writing, visual and performing arts.
Paul Andersen (of BozemanScience.com) explains how natural selection is a major mechanism …
Paul Andersen (of BozemanScience.com) explains how natural selection is a major mechanism in evolution. Also included in this resource are links to worksheets and a full transcript of the video.
Transcript added from YouTube subtitles. You can use this to write your own worksheet or quiz.
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