If an organism needed oxygen to survive, where would you expect the growth to occur in a broth tube? scattered throughout but mostly at the top

very bottom

very top

evenly distributed throughout the tube

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?

Nucleic acid certain protein cell membranes certain carbohydrates

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from