|
|
Did you know?
Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.
Did you know?
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
Did you know?
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
![Lilly Martin Spencer’s Young Husband: First Marketing (1854). Note that passers-by are amused at thi](https://biology-forums.com/gallery/47/medium_375348_18_08_15_9_36_28_222961281.jpeg)
![In many work settings, middle-aged people demonstrate generativity by serving as mentors for their ...](https://biology-forums.com/gallery/27/medium_660366_07_04_17_11_42_07_275221601.jpeg)