|
|
Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.
According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.
Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
The U.S. Preventive Services Task Force recommends that all women age 65 years of age or older should be screened with bone densitometry.
![a) Avoid placing the face cradle too high because it hyperextends and strains the neck. b) When the ...](https://biology-forums.com/gallery/27/medium_679044_04_04_17_12_50_27_27469931.jpeg)
![Using the cursors on the oscilloscope, the high- and low-oxygen sensor values can be displayed on ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_10_29_36_29951684.png)