« previous next »
« previous next »
 

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Successful agriculturalists must have a basic understanding of landscape structure and process. Thes Successful agriculturalists must have a basic understanding of landscape structure and process. Thes
Models of the α helix, showing different aspects of its structure Models of the α helix, showing different aspects of its structure
Structure of tRNAs: A leucine tRNA from E. coli Structure of tRNAs: A leucine tRNA from E. coli
Changes in the Age Structure of the Population, 1950–2050 Changes in the Age Structure of the Population, 1950–2050
Which is the most acceptable electron dot structure for N2H2? Which is the most acceptable electron dot structure for N2H2?
Comparing the structure of a primary shoot from (A) a monocot and (b) a eudicot. Comparing the structure of a primary shoot from (A) a monocot and (b) a eudicot.
Video: Enzyme structure - Properties of enzymes

For a complete list of videos, visit our video library