Shana is a competitive athlete who weighs 135 lb. she would like to plan a nutritionally adequate diet that provides enough carbohydrate to maintain her weight and glycogen stores during training and competition. according to expert recommendations, she should consume approximately grams of carbohydrate daily.

Carbohydrates are your body’s main source of energy. The amount of carbs a man should consume daily depends on his age and activity level. The Institute of Medicine suggests adults to eat at least 130 grams of carbs a day. But If you’re a competitive athlete like Shana, you need additional amount.

A study made by The Academy of Nutrition and Dietetics recommends a 2.3 to 4.5 grams of carbohydrates per pound of body weight each day, to athletes depending on the intensity of training. Therefore,  Shana who weighs 135 lbs, needs approximately  310.5 grams carbohydrates daily for her physical workouts. 

i took a test for bio that had this question and these were the correct answers, not sure if this is any now lol

the nervous system and the muscular system work together.  

sweat reaches the surface of the skin and evaporates into the air.

muscles underneath the skin relax, causing hair on the skin to lay flat.