Answer:
Answer is C.
Explanation:
A. The vessel length is pretty much constant. The body can't length or shorten blood vessels.
B. Blood viscosity is also fairly constant because the composition of blood cannot change quickly enough to change resistance as needed.
C. This is the main way resistance is controlled. The smooth muscle surrounding blood vessels can rapidly respond to hormonal or metabolic stimuli and contract/relax to adjust diameter.
D. Again, temperature is fairly constant in the body and would not be a good way to alter resistance.
The answer is 7.4%.
Percentage of trucks on the lot is equal to the ratio between the number of trucks and the total number of cars.
- Number of trucks ÷ Total number of cars
- 49 ÷ (49 + 612)
- 49 ÷ 661
- 7.4%
The opposite of an echosystem is Chaos pollution and exosytem
Answer:
The cell will grow in size
Explanation:
Salt will leave the cell since there is more salt inside the cell than there is outside. Because salt is leaving the cell, water will enter, making the cell expand.
Answer:
Yes. Levels of Carbon dioxide must be equal in proportion to metabolic rate of the system. is a product of cell respiration and should be monitored.
Explanation:
Levels of carbon dioxide must be equal in proportion to metabolic rate.
Carbon dioxide is a product of cell respiration and should be monitored to avoid surfocation and likes
As the temperature of the system(or body) increases, oxygen level decreases leading to increase in carbon dioxide level which is very dangerous for any system or an organisms. This can leading to Astma and other respiration problems.
