|
|
Did you know?
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
Did you know?
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Did you know?
Calcitonin is a naturally occurring hormone. In women who are at least 5 years beyond menopause, it slows bone loss and increases spinal bone density.
Did you know?
Adult head lice are gray, about ? inch long, and often have a tiny dot on their backs. A female can lay between 50 and 150 eggs within the several weeks that she is alive. They feed on human blood.
Did you know?
There are 60,000 miles of blood vessels in every adult human.
![The medical assistant often has to reassure and comfort the patient before effective communication c](https://biology-forums.com/gallery/47/medium_380792_21_05_16_2_07_16_235561803.jpeg)
![Propaganda to influence public opinion surrounds us, but most propaganda is covert, difficult to ...](https://biology-forums.com/gallery/27/medium_660366_16_04_17_1_11_17_27883201.png)