A400-gram sample of a radioactive nuclide is left to decay for 30 hours. at the end of 30 hours, only 200 grams of the sample is left. what is the half-life of the nuclide sample

a) 10 hours
b)1.5 days
c) 30 hours
d) 0.5 hours

Scientific method and data analysisa biology student wanted to determine if there is a relationship between resting heart rate and bodyheight. she gathered information from 12 classmates and constructed the table below.resting heart rate (beats per minute)student height (cm)155. 156156165180180190194195

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

What sre the effects of hemolytic disease of a newborn