Which of the following is true about the third trimester of pregnancy?
(a) the fetus grows the least during this trimester.
(b) it is the period during which the embryo differentiates and develops its various organ systems. (c) the fetus needs large amounts of calcium, iron, and protein from the mother's diet.
(d) it is the period during which the placenta becomes well established.

What is the difference between muscular strength and muscular endurance? a. strength refers to mobility of joints, while endurance refers to muscular force. b. strength refers to percentage of body fat, while endurance refers to sustaining activity over time. c. strength refers to muscular force, while endurance refers to sustaining activity over time. d. strength refers to the quality of physical performance, while endurance refers to mobility of joints.

Ihave a really high metabolism and only weigh 70 pounds (13 almost 14). people always ask me two questions: do you ever eat and how do you eat so much and stay so skinny.i am worried that a high metabolism wont me forever. what are some safe steps i can take to maintain being fit. (also, i already work out i am a dancer so i get cardio a lot)

Ingredients used in tobacco products been banned?