Bio 161 Penn State Exam 1 Verified question and answer []

Bio 161 Penn State Exam 1 Verified question and answer [2025/2026] Anatomy - Ans →Structure of the human body Physiology - Ans →Function of the human body Homeostasis - Ans →Adapt to external variables, Temperature, pH, Blood volume, Sugar levels Negative Feedback Loop - Ans →Body senses change and reacts to negate or reverse the condition Hormone - Ans →Chemical messenger Positive Feedback Loop - Ans →Cycle in which an initial change leads to a greater change, Self-amplifying, rapid change Atom - Ans →Subatomic particles- protons, neutrons, electrons Element - Ans →identified by the number of protons Neutral Atom - Ans →Same number of protons and electrons Ion - Ans →Atoms that have an uneven number of protons and electrons Cation - Ans →Positive charge, give up electrons easily