The blood group of sam’s father is a+ and that of his mother is b+. however, sam’s blood group is ab+. what is the correct explanation for this?

What process did darwin’s book suggest that organisms evolve through

A17-year-old primigravida is admitted in early labor. her cervix is 2 to 3 cm dilated and 100% effaced. the fetus is cephalic, and the presenting part is at –1 station. her membranes are intact. the patient is holding her boyfriend's hand tightly and breathing rapidly with each contraction. she tells the nurse in a shaky voice, "i'm so nervous. i've never been in a hospital before. i don't know anything about labor or if i can do this." what is an appropriate nursing diagnosis for this patient?

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what