|
|
There are more bacteria in your mouth than there are people in the world.
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.
Complications of influenza include: bacterial pneumonia, ear and sinus infections, dehydration, and worsening of chronic conditions such as asthma, congestive heart failure, or diabetes.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
![For a differential white blood cell count, (A) the slide is examined under oil immersion. (B) Cells ...](https://biology-forums.com/gallery/47/medium_660366_17_03_17_10_12_05_272331773.jpeg)
![An additional extension may be necessary to hoist a truck or van equipped with running boards to ...](https://biology-forums.com/gallery/29/medium_548020_25_05_17_2_59_26_294982129.png)
![Gram-stained bacteria on a microscope slide. (A) Red rod-shaped cells are Escherichia coli (Courtesy ...](https://biology-forums.com/gallery/30/medium_548020_08_06_17_10_52_36_306911029.jpeg)
![Place one hand on the medial and one on the lateral thigh to begin horizontal stroking. Slide hands ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_12_54_27_330631854.jpeg)