Over time, the toxins from inhaled cigarette smoke break the thin walls of alveoli, leaving larger, less efficient air sacs. The sacs also begin to lose their bounce, making it harder to bring in the oxygen and expel carbon dioxide. 3 Both can become partially trapped in the lungs.
A principle that is not associated with the cell theory is that very few cells reproduce. In fact all cells reproduce because they are the basic units of life.<span>2 people </span><span>found this useful</span>
Answer:
true
Explanation:
glucose is the primary nutrient for all living things
The sun appears to cross the plane of Earth's equator
when it reaches either one of the "equinox" points in the sky.
Answer:
Heredity, also called inheritance or biological inheritance, is the passing on of traits from parents to their offspring; either through asexual reproduction or sexual reproduction, the offspring cells or organisms acquire the genetic information of their parents
