« previous next »
« previous next »
 

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

It is widely believed that giving a daily oral dose of aspirin to heart attack patients improves their chances of survival because the aspirin blocks the formation of new blood clots.

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

The hierarchy of forces governing protein structure. The hierarchy of forces governing protein structure.
Formation and structure of a peroxisome Formation and structure of a peroxisome
Chemical structure of lipids Chemical structure of lipids
Ketone structure Ketone structure
Levels of protein structure: Tertiary structure Levels of protein structure: Tertiary structure
Secondary and Tertiary Structure of Nucleic Acids Secondary and Tertiary Structure of Nucleic Acids
Video: Phases of the ovarian cycle

For a complete list of videos, visit our video library