Answer:
Lungs.
Explanation:
Lungs are the organs that are responsible for gaseous exchange in humans. The lungs absorb oxygen from the air that is required for the process of respiration while on the other hand, carbon dioxide is transferred from the cells to the lungs through blood because carbondioxide gas is a waste material that is produced during respiration so it can be removed from the body with the help of lungs..
Answer:
genes are special instructions that come from an organism's parents. (sorry about repeating your question the minimum amount of letters and stuff i can type is 20.)
You can tell if matter is conserved if the substance changes . If the substance changes then matter has been conserved .
The nucleic acid is DNA and would be found in the cell’s nucleus.
In short, Your Answer would be Option D
Hope this helps!