Answer: This person could have smoke build up in their lungs.
Explanation:
Cells specialize to form specific tisue and organs because all cells have the same DNA. stem cells can develop into every type of cell inside the body.The cell is the basic unit of structure and function in all living organisms.
Answer:
Among the different disaccharides, lactose (milk sugar) is the only carbohydrate of animal origin.
Answer:
The correct answer is A
Explanation:
There are several respiratory centers, the main ones are in the medulla oblongata, also called spinal bulb, image attachment so you can observe better.
Image Reference:
https://en.wikipedia.org/wiki/Respiratory_center