This topic contains a solution. Click here to go to the answer
|
|
Did you know?
Every 10 seconds, a person in the United States goes to the emergency room complaining of head pain. About 1.2 million visits are for acute migraine attacks.
Did you know?
There are approximately 3 million unintended pregnancies in the United States each year.
Did you know?
Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.
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?
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
![(a) The Dmanisi cranium (right) shows similarities to early African H. erectus including the Narioko](https://biology-forums.com/gallery/47/medium_275510_22_02_15_6_06_47_20781142.jpeg)
![Historian James Merrell notes several errors in Benjamin West’s famous 1771 painting, William Penn’s](https://biology-forums.com/gallery/47/medium_374628_15_08_15_11_40_28_222192176.jpeg)