Which of the following is an example of negative feedback?

Correct Answer: C

Rationale: Negative feedback, like temperature regulation, counters deviations to restore balance cooling when hot, warming when cold. This self-correcting loop is vital for stability, unlike amplifying processes. Nurses use it to monitor homeostasis, adjusting care to maintain equilibrium, ensuring the body adapts effectively to fluctuations.

Correct Answer: D

Rationale: Bones blend calcium for rigidity and collagen for flexibility, forming a durable framework. Unlike cartilage or muscle, this composition supports and protects. Clinicians rely on it for fracture care, understanding its mineral-organic balance ensures skeletal strength and resilience throughout life.

Correct Answer: C

Rationale: Olfactory receptors in the nose detect odors, driving the sense of smell. Distinct from taste or sight, this chemical sensing warns of dangers like smoke or enhances experiences. Healthcare assesses it in neurological exams, linking it to brain function.

Correct Answer: A

Rationale: Respiration breaks down nutrients in cells to release energy, powering all functions. Unlike replication or division, it's the metabolic engine. Nurses address its disruptions like in COPD ensuring energy production sustains life's demands.

Correct Answer: C

Rationale: Mitosis duplicates cells for growth and repair, maintaining tissue integrity. Unlike meiosis's reproductive role, it's for renewal. Nurses leverage this in wound healing, ensuring cell division restores function and structure effectively.