It would be the nuclear membrane
Answer: C
Explanation: Left ventricle. With the thickest muscle mass of all the chambers, the left ventricle is the hardest pumping part of the heart, as it pumps blood that flows to the heart and rest of the body other than the lungs.
A true a substance that can be decomposed by bacterial
Advancement in technology. For example, body odor on humans was considered attractive thousands of years ago. Now it's just considered a hassle and we try our best to get rid of the smell.