Answer:
D. Decreasing vessel diameter
Explanation:
Cardiac output is the amount of blood pumped per unit time by heart. Increased cardiac output corresponds to increased blood pressure which will result in increased blood flow. In vasodilation the smooth muscles within the blood vessels relax making them wide hence decreasing vascular resistance leading to more blood flow. Decreased blood viscosity will also decrease the resistance to blood flow.
Decreasing vessel diameter will not increase the blood flow, it will rather restrict it because there will be more resistance to passage of blood due to small space.
Some older adults are unable to meet nutrient needs because of <u>a decrease in appetite </u>and may need supplements of <u>vitamins </u>and <u>calcium</u>.
Nutrition is important to live a healthy life. Eating healthy nutritious food gives proper growth and development to the body and brain. With aging the proper functioning of the body declines due to deficiency of nutrients. This decrease in nutrition in the old adult is due to less appetite. This results in diseases like weaker bones, in females osteoporosis, osteoarthritis, etc. To meet all their nutrition old adults require intake of supplements having vitamin D, vitamin B12, and calcium for healthy bones.
Learn more about Nutritional supplements here,
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defence cell in blood are called white blood cells
Answer: Then, due to various conditions within the Earth, the existing rock was changed into a new kind of metamorphic rock. The conditions required to form a metamorphic rock are very specific. The existing rock must be exposed to high heat, high pressure, or to a hot, mineral-rich fluid.
Explanation:
