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Life Science: Download Only

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Resource	Grade Level	Media Type
Dab of DNA Helps Keep Counterfeiters at Bay Find out in this USA Today article how DNA sequences can vouch for a souvenir's authenticity.	9-12	PDF Document
Dating Lava Flows on Mauna Loa Volcano, Hawaiʻi In this video segment adapted from NOVA, scientists search for carbonized remains of plants preserved in lava flows to find out how long it has taken rain forests on Hawaiʻi to regenerate after a volcanic eruption.	3-12	QuickTime Video
Deep Sea Vents and Life's Origins Deep-sea vents are home to strange, luminescent life forms that thrive through chemosynthesis. This video segment from NOVA: "Volcanoes of the Deep" hypothesizes life's beginnings in this extreme environment.	3-12	QuickTime Video
DNA Evidence This audio segment is a National Public Radio story on New York State's DNA profiling of criminals.	9-12	QuickTime Audio
DNA Makes History Read how DNA was used to solve the mystery of the Romanov family's execution. From Human Genetics: Concepts and Applications by Ricki Lewis.	9-12	PDF Document
Drift Seeds And Drift Fruits: Seeds That Ride The Ocean Currents This essay from Wayne's Word explores seed dispersal by water and describes some of the physical adaptations that evolution has produced in the seeds and fruits that travel this way.	6-8	PDF Document
Duckweed These images of duckweed (Lemna spp.) illustrate the basic anatomy and environment of these fast-growing plants.	9-12	JPEG Image
Finch Beak Data Sheet This graphic from Ecology and Evolution of Darwin's Finches by Peter Grant presents data from the Galapagos Islands, showing that a severe drought put selective pressure on the population of Darwin's finches and resulted in a change in the average beak size in the next generation.	9-12	PDF Document
Forensic DNA Analysis This video segment from NOVA: "The Killer's Trail" investigates the potential for DNA evidence to solve murder cases, even those from the distant past.	9-12	QuickTime Video
Growing Up, Growing Old This collection of six images captures the magnificence of human development -- the transformation from baby to woman.	K-5	JPEG Image
How DNA Evidence Works In this article by An Meeker-O'Connell, discover how DNA evidence is processed before it goes to court.	9-12	PDF Document
How Genetic Disorders Are Inherited Learn how genetic disorders are passed from parents to children as explained in this excerpt from Blazing a Genetic Trail, from the Howard Hughes Medical Institute.	9-12	PDF Document
Mitochondria Functions and Training This essay by Owen Anderson describes the effects of physical exercise on the number and function of mitochondria inside muscle cells.	9-12	PDF Document
The Remarkable Cocklebur: Worldwide Hitchhiker & Nature's Velcro® This essay from Wayne's Word explores the "hitchhiking" method of seed dispersal, and how a closer look at one of these bur plants gave rise to an invention.	6-8	PDF Document
Taking the Earth's Temperature This video segment from FRONTLINE/NOVA: "What's Up with the Weather?" depicts research efforts to record Earth's past and present temperatures shifts.	9-12	QuickTime Video
Tiktaalik: Evolution of a "Fishapod" In this media-rich lesson, students learn about transitional fossils and explore the similarities and differences between the structures of different animals. They focus particularly on Tiktaalik, a transitional fossil between aquatic and terrestrial vertebrates.	9-12	Lesson Plan
Whale and Human Ears What do whale ears look like? You might be surprised! These two versions of this diagram -- one with the anatomical parts labeled and one that students can label themselves -- compare the anatomy of a whale ear to that of a human ear. From Marine Biology: Environment, Diversity, and Ecology by David Lerman	3-5	PDF Document
Whales in the Making This graphic from Evolution, traces the evolution of whales from land-dwelling mammals to the aquatic creatures we know today.	6-12	PDF Document