Answer: carbon dioxide
Explanation:
This question is referring to the function of the respiratory system in the body and the lungs with the respiratory system are allowing us to breathe.
The lungs are bringing at first oxygen into our body and that process is called inspiration or also inhalation. They are sending carbon dioxide out which is a process that is called exhalation or also expiration.
This is the exchange that is happening in our body and with that exchange of oxygen and carbon dioxide, it is called respiration.
Answer:
D. Proteins that are consumed in the diet are absorbed as individual amino acids following digestion
Explanation:
Protein digestion begins from stomach and continues in small intestine too. In stomach, enzyme pepsin is responsible for breakdown of proteins into smaller fragments. The acidic environment created by hydrochloric acid facilitates this process.
Protein fragments move from stomach to small intestine where the main breakdown occurs. Pancreas releases two enzymes, trypsin and chymotrypsin in small intestine. These two enzymes along with some enzymes secreted by the small intestine breakdown the small protein fragments into individual amino acids which are finally absorbed via villi in small intestine.
Muscle its to cover the bones and make a shape,and to protect blood systems
