What fossil evidence best supports the classification of animals into these two basic branches, still recognized today?

Blood, made up of red and white blood cells, work together to form

What is used to keep track of the gamates and possible offsprings combination

Anurse is preparing to administer ampicillin 500 mg in 50 ml of dextrose 5% in water (d5w) to infuse over 15 min. the drop factor of the manual iv tubing is 10 gtt/ml. the nurse should set the manual iv infusion to deliver how many gtt/min? (round the answer to the nearest whole number. use a leading zero if it applies. do not use a trailing zero.)