Sample Test Item Preview

General Information
Related Benchmark: SC.912.L.14.36
Reporting Category: Life Science
Type: MC: Multiple Choice
Difficulty: N/A
Question:
The rate at which blood flows through the human body changes in response to many factors. Which statement describes one of these factors and its effect on blood flow?
Answer Options:
A. A high viscosity of blood causes an increased resistance in the blood vessels and leads to slow blood flow.
B. A low blood pH decreases the rate of diffusion through the blood vessels and leads to slow blood flow.
C. The changing of the shape of red blood cells to a crescent shape decreases resistance and leads to a faster blood flow.
D. The narrowing of blood vessels increases pressure and leads to a faster blood flow.
Answer Key:
A