1. prokaryotic cells
2. nucleus
3. The Cell Theory.
Answer:
The valves' main job is to keep the blood moving in one direction – back up towards the heart. When the valve is open, blood freely flows upward towards the heart and when the valves are closed, blood cannot flow back
A voltage source is a two-terminal device which can maintain a fixed voltage. An ideal voltage source can maintain the fixed voltage independent of the load resistance or the output current. However, a real-world voltage source cannot supply unlimited current. A voltage source is the dual of a current source. If this isn’t the answer I’m sorry but you didn’t give answer choices
Answer:
chronic obstructive pulmonary disease,Hypoxemia
Explanation:
Anything that will cause a loss in Oxygen will result in lower oxygen saturation. If you are deprived of Carbon monoxide then that can cause it to decrease .. if there is a decrease in hemoglobin that can be a cause too.