The pelvis and femur combination in humans are used for leg movement to allow for walking. In whales this combination has become a vestigial structure. Why is this the case?

Which term describes the number of waves that pass a given point in a given time? crest frequency trough wavelength

Sperm pass through the and connect to a short ejaculatory duct. vas deferens prostrates seminiferous tubules none of the above

Amniocentesis is a process in which amniotic fluid is taken from the mother's womb to identify any genetic abnormalities in the fetus. how would the discovery of the human genome contribute to this process?