|
|
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.
More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.
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.
![Deforestation and increased road-building in the Amazon Rainforest are a significant concern because](https://biology-forums.com/gallery/47/medium_27692_23_04_12_4_11_14.jpeg)
![Feedback mechanisms of the thyroid gland: (1) stimulus; (2) release of TSH; (3) release of thyroid h](https://biology-forums.com/gallery/47/medium_46687_29_12_14_8_33_50_19766545.jpeg)