|
Author Question: If opportunity costs are ignored: a. all firms will show accounting profits. b. all firms will ... (Read 65 times) |
Illicit drug use costs the United States approximately $181 billion every year.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).
Vaccines prevent between 2.5 and 4 million deaths every year.
The longest a person has survived after a heart transplant is 24 years.