D is the answer. A gene is a part of a chromosome.
Science is the study and learning mechanism of the world and how everything is created as well as used today and billion of years ago
The correct answer is: a tourniquet.
The tourniquets are tight straps around an arm or leg and tightened to stop bleeding, used to control arterial and venous blood flow. In the past, tourniquet are used to control bleeding during amputations. Now, a tourniquet is used in surgeries to block arterial blood flow following and to minimize blood loss.
Answer: carbon monoxide is one carbon atom and one oxygen atom
Explanation: