a: is truth
b: attempts to answer questions we have based on our observations
c: is the answer to all questions
d: relies heavily on beliefs and opinion

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

The cellular plasma membrane is selectively permeable, which means some materials move through it while others cannot. the movement of materials into and out of the cell is called membrane transport. this activity will you identify the different mechanisms of membrane transport

Influenza (the flu) is caused by a virus that attacks the respiratory system. which type of gene is most likely to be widely expressed in the body of someone who contracts the influenza virus? a the gene that controls the production of stem cells b the gene that controls the production of skin cells c the gene that controls the production of red blood cells d the gene that controls the production of white blood cells