| A | B |
|---|
| cation | atom that has gained 1 or more electrons |
| Homestasis | body maintains optmal conditions so chemical reactios can occur |
| community or species | Biological adaptations occur in... |
| polar covalent bond | bond shared unequally by 2 atoms |
| effector in feedback loop | carries response needed to restore homeostasis |
| transverse plane | divides body into superior and inferior parts |
| cells | simplest level in hierarchy of living things that includes all basic functions of life |
| Pelvic cavity | below rib cage |
