Which clinical finding in a pregnant patient will indicate proper fetal brain development?

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

Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?

If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days?