Answer:
The cost of production and using more efficient resources
In the excretory system, the waste materials are filtered from the blood. They are gotten rid off in order to maintain internal chemical homeostasis.
<h3>What is the Excretory System?</h3>
The excretory system can be described as a biological system that aids the body in removing unwanted materials from fluids of the body of organisms.
The main reason for the function of the excretory system is to maintain internal chemical homeostasis and prevent the body from damage.
Learn more about the excretory system on:
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I think that it is B, but i'm not sure