Design an experiment to test substances X, Y, and Z to determine which one is a catalyst for the reaction.

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?

1. watermelon, papaya, oranges, bananas, and lemons are included in this food group. vitamin c 2. you need 6 or more servings of this food group each day vitamins d and a 3. found in fruit and keeps blood vessels healthy calcium 4. vitamins found in milk bread and grain 5. a mineral that strengthens bones fruit

When a person is exercising the body needs to deliver increased amounts of oxygen to the muscles which component of blood ensures that the muscles will receive it