High Specific Heat Capacity for Temperature Stability

Steps:

• Blood plasma, primarily water, requires significant heat input to change temperature.
• Specific heat capacity measures heat needed to raise 1 kg of substance by 1°C.
• High specific heat absorbs environmental heat fluctuations without large temperature shifts.
• This buffers plasma temperature, maintaining homeostasis in the body.

Why B is correct:

• High specific heat capacity (c = Q/(mΔT)) means large heat absorption causes minimal ΔT, stabilizing temperature per the heat capacity formula.

Why the others are wrong:

• A: Low specific heat would allow rapid temperature changes from small heat inputs.
• C: Low latent heat of vaporization affects evaporation rate but not liquid temperature stability.
• D: High latent heat hinders phase change cooling but irrelevant to sensible heat for plasma's liquid state.

Final answer: B