Why can a person receive platelets donated by anyone, but must receive a particular type of whole
blood? (note: whole blood includes all blood cell types)

2. How might a technique to remove A and B antigens from red blood cells be used to increase the supply
of donated blood?

How do environmental factors influence genetic traits? a. environmental factors determine all genetic traits. b. environmental factors can determine if a genetic trait becomes a health issue. c. environmental factors are determined by genetic traits. d. environmental factors have no influence on genetic traits. select the best answer from the choices provided

The double bond between a carbon atom and two oxygen atoms (a molecule of carbon dioxide) has two characteristics. what are they? a. an ionic bond is formed between the oxygen and carbon atoms. b. four valence electrons are shared. c. two valence electrons are shared. d. valence electrons are shared between oxygen atoms.

Are the layers of rock above and below the coal older or younger?