The body's ability to maintain a stable internal environment despite external changes is known as what?

Correct Answer: A

Rationale: Homeostasis keeps internal conditions steady like pH or temperature amid external flux. Unlike evolutionary shifts, it's immediate balance. Nurses monitor it like in fever intervening to preserve stability, ensuring cells thrive under varying conditions.

Correct Answer: A

Rationale: Contraction enables muscles to shorten and pull, driving movement. Unlike stretching or bending, it's force generation. Nurses assess it like in cramps ensuring muscle action supports mobility and function.

Correct Answer: B

Rationale: Organelles are specialized structures within cells, like mitochondria producing energy, distinct from atoms (A, chemical units), organs (C, tissue groups), or tissues (D, cell groups). They're critical to cellular function, enabling anatomy to trace life processes from microscopic to macroscopic levels, making B the accurate choice.

Correct Answer: D

Rationale: The nose is superior (above) the chin in anatomical position, not anterior (A, front, though true in profile), lateral (B, side), or posterior (C, back). Superiority reflects vertical hierarchy on the face, a key anatomical distinction for precise location descriptions.

Correct Answer: D

Rationale: Lateral means further from the midline (e.g., ears lateral to nose), not closer to attachment, farther from it, or midline. This term orients anatomy sideways, distinguishing side structures from central ones, making D correct.