Your answer is C.Calcium.
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Answer: C. phenotype.
Explanation:
The disease phenotype is an observable characteristic or trait of a disease. It is influenced by the genetic make up and the surrounding environment of the organism. The appearance of symptoms, biochemical and physiological development of the disease is associated with the traits inherited from parents and also under the influence of the environment.
D- The digestive system breaks down your food and your circulatory system takes it throughout your body
Cellular respiration:
Cellular respiration is the process by which cell break down glucose with oxygen to store the energy as adenine triphosphate or ATP. Energy from ATP is used to help the cell perform daily functions like growing, dividing and repairing itself. Glucose can either be created through photosynthesis in plant cells or ingested in animal cells.
There are four phages of cellular respiration.
• Glycolysis
• Transition stage
• Citric acid cycle
• Electron transport chain
I believe the answer is respiration