|
|
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
The U.S. Pharmacopeia Medication Errors Reporting Program states that approximately 50% of all medication errors involve insulin.
The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.
![Chimpanzees in the Gombe National Park, Tanzania groom each other by holding an overhead branch with](https://biology-forums.com/gallery/47/medium_269691_26_01_15_5_55_24_204381261.jpeg)
![Symbolic language may have helped reinforce exclusive sexual relationships within social groups in l](https://biology-forums.com/gallery/47/medium_273688_23_02_15_7_07_21_20847395.jpeg)