In determining the length of time radioactive waste should be stored before disposal in normal waste, the isotope’s half-life is considered. What is a half-life?

If an online school program (i.e k12, ecot) assigns me a computer, would it be ok to use social media on it? would i get in trouble? i am not really sure from reading their terms and such.

The breakdown of peptides into amino acids is an example of . the release of insulin after eating a large meal is an example of .

Kelly is 33 weeks pregnant and her doctor has scheduled her for a procedure to remove a small amount of fluid to check for the health of the fetus. the procedure is called .