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Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.
Did you know?
In the United States, there is a birth every 8 seconds, according to the U.S. Census Bureau's Population Clock.
Did you know?
Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
![Boundaries within landscapes created by human activity (background) and natural environmental gradie](https://biology-forums.com/gallery/47/medium_33_27_08_11_11_52_18_15341177.jpeg)
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