Which organ supplies a human's bloodstream with oxygen from the air, which can then be taken through the blood to the muscle cells of the arm?

Which identifies the main purpose of biological taxonomy?

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?