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?
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 lead to a faster blood flow.
d. the narrowing of blood vessels increases pressure and leads to a faster blood flow.
Answers: 2
Biology, 21.06.2019 13:00
The ocean layer of a rapid temperature change with deph is known as the
Answers: 2
Biology, 21.06.2019 18:00
How is the motion of the particles of water at 80 ⁰c different from the motion of the particles of water when it is 30 ⁰c?
Answers: 1
Biology, 21.06.2019 18:30
The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.
Answers: 3
Biology, 22.06.2019 00:30
Building glycogen from glucose molecules is an example of what
Answers: 2
The rate at which blood flows through the human body changes in response to many factors. which stat...
English, 28.05.2021 19:20
History, 28.05.2021 19:20
Social Studies, 28.05.2021 19:20