Blood vessels for the movement of blood to and from fetus?
A)Placenta

B)umbilical cord
C)amniotic sac

D)amniotic fluid

If you are going to enter a wrestling competition and need to make a certain weight, which method would best utilize? a: pinch an inch b: circumference measurements c: bathroom scale d: body-fat scale

Which of these is not related to the teeth? a. chymob. pulpc. enamold. dentin

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.