The four polypeptides that are joined together to make hemoglobin represent which level of protein organization?

Models are non-visual ways of coummincating how someone thinks about something in the natural world

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

Which is the function of the hypothalamus in thermoregulation? answers: -sensor -effector -stimulus -intergrating center it's either a or c i believe