« previous next »
« previous next »
 

Did you know?

Approximately 25% of all reported medication errors result from some kind of name confusion.

Did you know?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Here's how comic book heroes are made Here's how comic book heroes are made
Subtle Differences in Written Words Subtle Differences in Written Words
The number of words correctly completed in the New York Times crossword puzzle increases with age ... The number of words correctly completed in the New York Times crossword puzzle increases with age ...
Common Root Words and Combining Forms Cont. Common Root Words and Combining Forms Cont.
An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that ... An archaeological sample contains 0.700 g of lead-206 and 2.144 g of uranium-238. Assume that ...
Sample Size Affects Sampling Error Sample Size Affects Sampling Error
Video: Nucleic acid digestion - brush border enzymes, end products & transport mechanism

For a complete list of videos, visit our video library