You arrive at this conclusion because your classmate "and his sister are both much shorter than their parents."
Explanation:
As we start getting older, the bones begin to become thinner. Respectively of the vertebrae converts to become a little shorter. Therefore, so do we. With full-blown osteoporosis, people can lose several inches in height. The average height of a woman in the U.S. is about 5 feet, 4 inches, up about an inch in the last few decades, according to the Centers for Disease Control and Prevention. The study adds to growing interest in early-life events that influence adulthood.
Answer:Blood
Explanation:Bones contain bone marrow. Red and white blood cells are produced in the bone marrow. Protects and supports organs: Your skull shields your brain, your ribs protect your heart and lungs, and your backbone protects your spine.
Potential energy in chemical form
The energy associated with the food isstored as potential energy in chemical form. ... The energy in the foodremains unavailable until it is properly processed. It is stored in the form of potential energy present in the chemical form inside the food.
I think it’s 3 but it very well could be 4 to this is kinda tricky