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?


The narrowing of blood vessels increases pressure and leads to a faster blood flow.


A low blood pH decreases the rate of diffusion through the blood vessels and leads to slow blood flow.


A high viscosity of blood causes an increased resistance in the blood vessels and leads to slow blood flow.


The changing of the shape of red blood cells to a crescent shape decreases resistance and leads to a faster blood flow.

Answers

GPT-4o mini
The correct statement is:

**A high viscosity of blood causes an increased resistance in the blood vessels and leads to slow blood flow.**

This accurately describes how increased viscosity (thickness) of the blood can impede its flow through the circulatory system, leading to slower blood flow due to greater resistance encountered by the blood as it travels through the vessels.