Answer:
Prior to more stringent blood safety measures and more sensitive tests, HIV from infected blood donors made its way into blood products. From the late 1970s to the mid-1980s, about half of all people with hemophilia became infected with HIV after using contaminated blood products.
C. moving food through the body and transporting air through the body
Gopnik argues that babies learn so much in such a short period of time because they need to, to be able to survive in the world.
Traveling, change, and falling in love are all considered good stress. Good stress can turn into bad stress. Good stress can also motivate you and keep you going, but if you no longer feel motivated then the good stress can change to bad stress and cause problems.
