Explanation:
Food and liquids are processed by the digestive system. After nutrients are absorbed during digestion, the excretory system removes solid waste products, or feces, through the rectum. The excretory system also works with the respiratory and circulatory systems and removes carbon dioxide (CO2) from the body.
Gene is a sequence of DNA that codes for a specific, detectable product, such as a protein.
<h3>
What is a Gene?</h3>
This is defined as the basic physical and functional unit of heredity and occupy a fixed position on a chromosome.
It is also the sequence of DNA that codes for a specific, detectable product, such as a protein or RNA.
Read more about Gene here brainly.com/question/25703686
The answer would be the second choice, "Central Nervous System"
Answer:
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