NAS 2 Challenge Exam Study Guide Questions With Answers (Verified And Answers)

NAS 2 Challenge Exam Study Guide Questions With Answers (Verified And Answers) Levels of Organization: - answerchemical, cellular, tissue, organ, organ system, organismal Survival Needs - answernutrients, oxygen, water, appropriate temperature, atmospheric pressure Requirements for Life - answermaintaining boundaries, movement, responsiveness, digestion, metabolism, excretion, reproduction, growth Homeostasis - answerability to maintain relatively stable internal conditions even though the outside world changes continuously Basic Mechanisms - answerreceptor, control center, effector Negative Feedback Mechanisms - answermost common homeostasis control mechanism; the net effect is that the original output of the system shuts off the original stimulus or reduces the intensity Positive Feedback Mechanisms - answercause the level of a variable to change in the same direction as the an initial change