In cellular respiration is the process of extracting energy in the form of ATP from the glucose in the food you eat. In stage one glucose is broken down in the cytoplasm of the cell in a process call glycolysis. In stage two the pyruvate molecules are transported into the mitochondria
Based on the given results of varying height of people which is considered normal, this would mean that this is controlled by several different genes. There are some who are really short, and some are really tall, but most of them fall in the middle or say normal range. Answer for this would be option D.
Each part of the heart is responsible for a certian aspect of how you live-- your blood (pumped through your heart) oxygenates your blood, and ensures that has the nutrients you need to survive. It also carries away waste. Without each of these intricate pieces, you wouldn't be able to survive.
