All donated blood is tested for syphilis, hepatitis, and hiv according to guidelines established by the food and drug administration. a. true b. false

Which class of organic compounds makes up the channels and pumps that move materials from one side of the cell membrane to the other? a.) carbohydrates b.) lipids c.) proteins d.) nucleic acids

Based on the data in your tables, did the light-colored moths have a higher or lower survival rate after the industrial revolution?

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels