What is the primary function of the upper respiratory system? to move air toward the lungs while warming, moistening, and filtering it to diffuse oxygen and carbon dioxide in and out of cells to absorb and break down nutrients after they are consumed to pad the head with air pockets to protect against brain trauma

Which of the following identifies a main culprit for america’s increasing weight gain

From the list below, choose all the correct statements about the functions of fat. select all that apply. select all that apply. fat provides flavor and texture to food (think ice cream) and also leaves you satisfied for longer after a meal. fat in the diet allows for the transport of vitamins a, c, and e because they are fat-soluble. lipids are an essential component of cell membranes, act as insulation under the skin, and protect organs from injury. the body can rely on carbohydrate stores during periods of low energy intake. fat is a good source of energy providing 4 kcal/g.

Viral infections in plants ) can be controlled with antibioticsb) can spread within a plant via plasmodesmata c) have little effect on plant growthd) are not spread by animals