|
|
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
Did you know?
After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Did you know?
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Did you know?
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
![Common skin signs are often evidence of an illness or disorder. A nodule is a larger papule; acne ...](https://biology-forums.com/gallery/47/medium_665046_01_03_17_6_26_25_26136243.jpeg)
![In old age, as in all other stages of the life course, people find life more pleasant if they have ...](https://biology-forums.com/gallery/27/medium_660366_16_04_17_12_25_18_278571741.png)