When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Did you know?
Each year in the United States, there are approximately six million pregnancies. This means that at any one time, about 4% of women in the United States are pregnant.
Did you know?
Thyroid conditions may make getting pregnant impossible.
Did you know?
On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.
Did you know?
Addicts to opiates often avoid treatment because they are afraid of withdrawal. Though unpleasant, with proper management, withdrawal is rarely fatal and passes relatively quickly.
Using outgroups to infer the ancestral state
Abortion Rates by State, 2008
Structure of retroviral genomes in the integrated state
Changes of State of Water
Sketch the graph of each function using transformations. State the domain and range.