Question

select all that apply
blood is thicker, or more viscous, than water.
blood is normally close to neutral, with a ph between 6.95 and 7.05.
the temperature of blood is equal to body temperature, about 37°c (98.6°f).
the color of blood ranges from bright red to dark red depending on oxygen levels.

Explanation:

• Blood has a higher viscosity than water due to its components like cells and proteins.
• Normal blood pH is around 7.35 - 7.45 (not 6.95 - 7.05), so the second statement is incorrect.
• Blood temperature is indeed about \(37^{\circ}C\) (\(98.6^{\circ}F\)) as it is maintained close to body temperature.
• Blood color varies from bright red (oxygen - rich, with hemoglobin - oxygen complex) to dark red (oxygen - poor).

Answer:

• A. Blood is thicker, or more viscous, than water.
• C. The temperature of blood is equal to body temperature, about \(37^{\circ}C\) (\(98.6^{\circ}F\)).
• D. The color of blood ranges from bright red to dark red depending on oxygen levels.