Question

The Food Guide Pyramid provides information about the kinds of vitamins and minerals in foods places all foods into five general groups allows you to count calories to lose weight. None of the choices is correct Most of the oxygen carried by the blood is dissolved in the plasma. bound to hemoglobin molecules. present is tiny bubbles in the Mood. part of sugar molecules The normal flow of Mood through the heart is right atrium right ventricle lungs left atrium left ventricle aorta. right atrium left atrium left ventricle aorta. lungs right atrium right ventricle aorta. right atrium right ventricle aorta left atrium left ventricle lungs. The normal How of blood would be heart capillaries arteries veins heart. heart arteries capillaries veins heart. heart veins capillaries, arteries! heart. heart veins arteries capillaries heart. Which of the following is involved in increasing the surface area of the lungs? capillaries villi alveoli nephrons Nephrons are found in Jungs. kidneys. endocrine gland. villi. The outer layer of the epidermis is constantly replaced. is composed of living cells. contains blood. None of the choices is correct.
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Answer 1

Ans.
6. The food guide Pyramid is design to make Healthy and food grouped in to Five group so option is B is correct.
7. 97% O2 is transported by Hemoglobin in the form of Oxyhemoglobin and 3% by dissolved form so option B is correct.
8. Blood flow from heart is
Right atrium--->Right ventricle--->Lungs--->left atrium----->left ventricle---> aorta, so option A is correct
9. normal blood flowes from hear to artery then arteriols then capaleries then veineols then vein then heart so option B is correct

10. Alveoli are the functional unit of lungs, these are highly convoluted sac like structure, its membrane is very thin, the increase surface area for exchange of gases so option C is correct.

11. Nephrons are the functional unit of kidney which is responsible for filtration of blood, so option B is correct.