|
|
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
![The hatred and vengeance of adults become the children’s heritage. The headband of this 4-year-old ...](https://biology-forums.com/gallery/27/medium_660366_16_04_17_1_11_15_27876110.png)
![In Hindu marriages, the roles of husband and wife are firmly established. Neither this woman, whom I ...](https://biology-forums.com/gallery/27/medium_482573_20_04_17_12_17_27_27913446.png)