Answer:
A
Explanation:
Cardiovascular diseases involves the heart.
Any of the above options with regards to blood (etc, white blood cells, red blood cells) are related to circulatory system, not affecting the function of the heart.
Stem cells performing apoptosis to remove old cells is a myth. Stem cells can only differentiate to form cells of the same lineage, not causing other cells to undergo apoptosis. The only external factor that can cause cells to undergo apoptosis is a type lymphocyte in the immune system
Answer:
30vx-18v
Explanation:
Assuming the expresion is

Trees in the rainforests store CARBON DIOXIDE. The trees absorb CO2 and therefore when they are cut down, they release the stored CO2 into the atmosphere which contributes the climate change. The correct answer to this question is letter "B. Carbon Dioxide". I hope this helps.