|
|
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.
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Coca-Cola originally used coca leaves and caffeine from the African kola nut. It was advertised as a therapeutic agent and "pickerupper." Eventually, its formulation was changed, and the coca leaves were removed because of the effects of regulation on cocaine-related products.
People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.
![A mother dies, a father loses his leg—such calamities shattered poor urban families. Orphaned street](https://biology-forums.com/gallery/47/medium_6_24_08_15_12_36_55_224282222.jpeg)
![The fact that a mother works outside the home has no negative effect on the well-being of her child ...](https://biology-forums.com/gallery/27/medium_660366_07_04_17_11_20_46_275011026.jpeg)