« previous next »
« previous next »
 

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Asthma occurs in one in 11 children and in one in 12 adults. African Americans and Latinos have a higher risk for developing asthma than other groups.

Elle and associates investigated the cost to Datura wrightii of producing sticky leaf trichomes. Elle and associates investigated the cost to Datura wrightii of producing sticky leaf trichomes.
Fossilized Remains of Former Life Fossilized Remains of Former Life
Stressful Life Events, 5-HTT, and Depression Stressful Life Events, 5-HTT, and Depression
Anna Vallayer-Coster, Still Life with Lobster. Anna Vallayer-Coster, Still Life with Lobster.
How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay? How long does it take for 90% of a sample of strontium-90 (half-life of 28.8 years) to decay?
Video: Proteins

For a complete list of videos, visit our video library