What might be a symptom of a person whose vein valves are not functioning properly and are causing fluid it flow away from the heart?

Considering answers;

-fever

-constricted veins

-swollen veins

-confusion

Answer;

Swollen veins

Swollen veins might be a symptom of a person whose vein valves are not functioning properly and are causing fluid it flow away from the heart.

Explanation;

Valves are structures that are found in the circulatory system both in the heart and the veins.

They function to prevent the back flow of blood.

They do so by ensuring the continuous flow of blood in one direction.

If the valves are not functioning properly it may lead to various effects such as swollen veins due to the back flow of blood which may lead to the pooling of blood in the extremities.

a neutral ph of 7 and normal organism temperature is needed for a certain enzyme to be effective.  

what would happen to the enzyme if the ph and/or temperature fluctuate greatly from the norm?  

a.the enzyme’s hydrogen bonds will break.  

b.the activation energy will increase.  

c.more product will be formed.

d.the ideal temperature and ph for the enzyme function will decrease.