Induction of Nitrate Reductase in Plant Shoots
A laboratory exercise that uses colormetric assay and corn seedling shoots to study the induction of enzyme activity by a substrate.
Diversity of leaves
The diversity of land plants can be seen in the diversity of their leaves. Leaves vary by color, vein arrangement, shape, texture, and thickness.
How do I pay?
Op het einde van deze les kun je bepalen met welke betaalmiddelen jij de congestion charge misschien wel zou betalen en met welk betaalmiddel zeker niet.
Plants That Aren't Plants: Mosses and Lichens
Mosses and lichens are not given much attention in introductory biology laboratory courses, in part because instructors lack skills necessary to cover the topic-namely, moss leaf cross sectioning and lichen chemical spot tests. Acquiring confidence in just these two techniques, as well as familiarity with basic terminology, lays a foundation for further investigation.
Slide Right on By Using an Inclined Plane
Students explore building a pyramid, learning about the simple machine called an inclined plane. They also learn about another simple machine, the screw, and how it is used as a lifting or fastening device. During a hands-on activity, students see how the angle of inclination and pull force can make it easier (or harder) to pull an object up an inclined plane.
Sleeping Beauty Invades Rat's Genome
Knockouts are not just for Mice anymore. Aron Geurts and Howard Jacob from the Medical College of Wisconsin talk about their plans for creating transgenic rats using the Sleeping beauty transposon. Coming out of work pioneered by Colin Bishop's lab, Geurts and Jacob describe how the Sleeping Beauty system can be used to make transgenic rats and their plans to make the phenotype data from these rats available via the MCW PGA website (http://pga.mcw.edu) and the strains themselves accessible via a
Not your everyday commuter
Op het einde van deze les kun je over een dialoog over pendelen via de Kanaaltunnel inhoudsvragen beantwoorden.
Crews Speak with Pope Benedict XVI
The STS-134 and Expedition 27 crews joined together in the Kibo module for a special call from Pope Benedict XVI.
Living and non-living things
Living things often rely on non-living things to accomplish daily tasks. Living things have several characteristics that non-living things do not, such as the ability to move, eat, breathe, and reproduce. Living things and non-living things can interact even though they do not have the same characteristics.
Community based Physical Therapy
In this lecture, students are going to learn about the history, the society background and the system of Regional Physiotherapy for the preparation and the understanding of the practical side of Regional Physiotherapy. Moreover, we will have suggestions by the physiotherapists and occupational therapists working on the front-line.
3.8 Revision questions
Hearing is a familiar and important human sense that is a topic naturally of interest to those who are curious about human biology. This unit will enable you to relate what you read to your own sensory experiences – and indeed many of the questions asked have exactly that function. This unit will be best understood by those with some biological understanding.
Science Digest - Episode 2 Animal Guy
Quirky Science Digest talk show host Mathew Arden interviews animal expert Brad Crane.
Lezen en spreken: And on your left you can see 'Manneken Pis'
Aan het einde van deze les kunnen cursisten Amerikaanse toeristen een korte rondleiding geven in Brussel.
Colon Cancer (Spanish)
This patient education program explains what colon cancer is, the symptoms, diagnosis, and available treatment options. This is a MedlinePlus Interactive Health Tutorial from the National Library of Medicine, designed and developed by the Patient Education Institute.
Hormone Concentrations During Puberty
Guide questions - Do the reproductive systems of males and females function during childhood as they do in adults? Is the hypothalamic-pituitary unit sensitive to gonadal steroids during childhood? How do gonadotropin and reproductive steroid hormone levels fluctuate during fetal life, infancy, childhood, puberty and adulthood? When do males and females undergo puberty? What is the first observed hormonal change for males and females at puberty? University of Cincinnati College of Medicine Repro
Spell-a-thon List 01 - Quiz
This quiz tests your ability to spell words from the CARI Spellathon 2005 list 1.
The Zimmerman Telegram: Bringing America Closer to War
At the end of January 1917, the German government--desperate to break the stalemated trench warfare--announced that it would resume unrestricted submarine attacks. The United States broke diplomatic relations with Germany and further events pushed the nation even closer to war. On March 1, newspapers published a telegram from German foreign minister Arthur Zimmermann to the Mexican government, proposing a German-Mexican alliance against the United States. (For attacking the United States, the Me
"Such Cases of Outrageous Unspeakable Abuse...": A Puerto Rican Migrant Protests Labor Conditions Du
In 1917 the United States declared the inhabitants of Puerto Rico, a U.S. possession since 1898, to be citizens of the United States--a "gift" that many Puerto Ricans resented. Seeing an untapped source of inexpensive labor, the U.S. Labor Department worked with industry to facilitate the migration of Puerto Rican workers to America. During the First World War the War Department agreed to transport Puerto Rican workers to labor camps in the United States where they would be housed and fed while
South Boston High School, tape 1
African American students board buses at South Boston High School. Boston Police officers are stationed near the school. Police cruisers escort buses to and from the school. Jerome Wynegar (Headmaster, South Boston High School) stands in the schoolyard. White students exit the school after the buses depart. A passerby tells the camera crew that their presence causes a disturbance.