Iwill mark brainliest! the half-life of a radioactive element is the length of time it takes for half of a given amount of the
element to break down, or decay.
true
false

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