|
|
The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.
The familiar sounds of your heart are made by the heart's valves as they open and close.
According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
![Large size can provide a refuge from predators. While young African elephants may be vulnerable to p](https://biology-forums.com/gallery/47/medium_33_17_02_12_5_35_26_19681934.jpeg)
![Mutualisms, such as those that occur among plants and pollinators, generally involve large numbers o](https://biology-forums.com/gallery/47/medium_33_17_02_12_5_40_33_19821245.jpeg)
![(a) Feeding by bear on salmon results in large allochthonous inputs of nutrients into (b) the forest](https://biology-forums.com/gallery/47/medium_33_17_02_12_7_02_16_2035460.jpeg)