Apatient in cardiac arrest receives vasopressin [pitressin] during cardiopulmonary resuscitation (cpr). an increase in which finding would indicate a desired effect of the medication?

How can a geological time scale best be reconstructed? a) comparing vestigial structures in living species b) comparing homologous structures in living species c) examining homologous structures in fossil remains d) examining the written records of scientists from past cultures

Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?

The mixture of sperm and fluids from the seminal vesicles, prostate gland, and cowper's glands is called