Life Science

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Dab of DNA Helps Keep Counterfeiters at Bay

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. OER Level

9-12

Document

Dating Lava Flows on Mauna Loa Volcano, Hawaiʻi

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. OER Level

3-12

Video

Deep Sea Vents and Life's Origins

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. OER Level

3-12

Video

DNA Evidence

DNA Evidence

This audio segment is a National Public Radio story on New York State's DNA profiling of criminals. OER Level

9-12

Audio

DNA Makes History

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. OER Level

9-12

Document

Drift Seeds And Drift Fruits: Seeds That Ride The Ocean Currents

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. OER Level

6-8

Document

Duckweed

Duckweed

These images of duckweed (Lemna spp.) illustrate the basic anatomy and environment of these fast-growing plants. OER Level

9-12

Image

Finch Beak Data Sheet

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. OER Level

9-12

Document

Forensic DNA Analysis

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. OER Level

9-12

Video

Growing Up, Growing Old

Growing Up, Growing Old

This collection of six images captures the magnificence of human development -- the transformation from baby to woman. OER Level

K-5

Image

How DNA Evidence Works

How DNA Evidence Works

In this article by An Meeker-O'Connell, discover how DNA evidence is processed before it goes to court. OER Level

9-12

Document

How Genetic Disorders Are Inherited

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. OER Level

9-12

Document

Mitochondria Functions and Training

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. OER Level

9-12

Document

The Remarkable Cocklebur: Worldwide Hitchhiker & Nature's Velcro®

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. OER Level

6-8

Document

Taking the Earth's Temperature

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. OER Level

9-12

Video

Tiktaalik: Evolution of a "Fishapod"

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

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 OER Level

3-5

Document

Whales in the Making

Whales in the Making

This graphic from Evolution, traces the evolution of whales from land-dwelling mammals to the aquatic creatures we know today. OER Level

6-12

Document