The correct hierarchy starts at the chemical level (molecules), builds to the cellular level, then to tissues, organs, organ systems, and finally, the organism as a whole.
Homeostasis involves mechanisms that regulate the internal environment, such as maintaining temperature, pH, and electrolyte balance, to ensure optimal functioning of the body.
The sagittal plane divides the body into left and right sections. The mid-sagittal plane divides it equally, while other sagittal planes may not be symmetrical.
Mitochondria are the "powerhouses" of the cell, generating ATP (adenosine triphosphate) through cellular respiration, which provides energy for cellular functions.
Positive feedback amplifies the original stimulus, as seen in childbirth (oxytocin increases contractions) or blood clotting. Negative feedback mechanisms, in contrast, work to stabilize conditions by reversing changes.
