In humans, which of these is a vestigial structure?

stomach

coccyx

lungs

hand

What is the function of pulmonary surfactant?

Which of the following indicates maturation of the prefrontal cortex by age 6? Select one: a. emotions become more nuanced and responsive b. sleep becomes more irregular c. temper tantrums increase d.

A ball is falling after rolling off a tall roof. The ball has

The nurse in the postpartum unit is instructing a mother regarding lochia and the amount of expected lochia drainage. the nurse instructs the mother that the normal amount of lochia may vary but should never exceed which amount?

Which of the following is an example of an object with elastic potential energy? a. a bow knocked back with an arrow a stretched rubber band b. a compressed basketball all of the above

Which of the following is a scientific question

Terry has recently been diagnosed with an inherited form of depression. which of the flowing is the most likely cause or the depression? a. Terry has a mutation in the enzyme involved in NE synthesis b.

What makes water a polar molecule? Choose 1 answer: It has fully positive and negative charges. It contains ionic bonds. C) It is able to dissolve nonpolar substances. It contains partial positive and negative charges.

What characteristics are common in all mammals?

What is the function of the nucleolus? *Subject was not below, but the subject is science.