i pretty sure its Cytokinesis and Spindle Fibers.
When blood is in the lungs,
where oxygen is plentiful, oxygen easily binds to the first subunit and then quickly fills up the remaining ones. Then, as blood circulates through the body, the oxygen level drops while that of carbon dioxide increases. In this environment, hemoglobin releases its bound oxygen.
Answer:
c
Explanation:because i know
A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms.
Inferences are related to observations because inferences are an explanation for an observation you have made.