Answer:
When CO2 is breathed into the lungs, it dissolves in the water there, diffuses across the alveolar-capillary membrane, and enters the bloodstream. As it combines with water, it forms carbonic acid, making the blood acidic. So CO2 in the bloodstream lowers the blood pH.
A mutation may result change in the way you look, you could lose sight, could be born with some genetic issues.
Answer:Through polymerization reactions.
Explanation:
This happens when monomers bond together to form a polymer.
Answer: The literal reason would be because our ancestors did. The ancestors of all modern mammals had five digits on each limb up to 360 million years ago.
Explanation: