Don't download unsafe programs , because many contain viruses.
Start and Shut down your computer/laptop properly.
2. The cloning of a human embryo
3. Affordable care act
Sorry dk the others....
Answer: The heart consists of four chambers, two atria (upper chambers) and two ventricles (lower chambers). There is a valve through which blood passes before leaving each chamber of the heart. The valves prevent the backward flow of blood.
<span>The first state law on the prohibition of marijuana was adopted in California in 1913.
<span>Marijuana was banned in 30 states in 1930.</span></span>
