It takes about one minute for a blood cell to make a complete circuit of the human body.
I believe the answer you are looking for has to do with cells, they are the basic building block of life and are the smallest life that can support itself.
Most bacterias are heterotrophs. Meaning they can't make their one good ( sadly :3)
It’s c Xand Y good luck sweetie
Answer:
It is the scientific method of investigation problem-solving used by disease detectives like epidemiologists, laboratory scientists, statisticians, physicians and other health care providers, and public health professionals, to get to the root of health problems and outbreaks in a community.
Explanation: