Answer:
2. Can carry less oxygen and more carbon dioxide.
Explanation:
Sickle cell anemia damages and inhibits hemoglobin in red blood cells reducing how much oxygen they can carry.
Answer:
it is true. Watersheds can be as small as a footprint or large enough to encompass all the land
Answer: A cell
Explanation:
The tissue is inside of the organ, which is inside of the organism, the next thing would be a cell, and then after that the next smallest would be a molecule