During a third-trimester ultrasound, what would a doctor expect to observe in a fetus? initial development of organs
response to noise and light
presence of a tail-like structure
the first heartbeat

B - response to noise and light

The other three choices are very early on in pregnancy. First heartbeat and tail-like structure should be first trimester and development of organs is either late first trimester or early second trimester.

hope that helps :)

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Many archeologists and anthropologists disagree with dr. thorne's view.  thorne strongly believes that what many calls "homo erectus"  was in fact  homo sapiens,  and that they migrated out of africa almost 2 million years ago and dispersed throughout europe and asia. that's way different  from what scientists have always believed about the evolution of the species.