OK the the answer you are looking for will be the excretory system because that is the system that releases waste.
One difference between mechanical and electromagnetic waves is that mechanical waves need a medium to pass through (solid, liquid, gas). EM waves can travel through matter or though a vacuum. In regards to telecommunications, EM waves can be radio waves, these are used in TV's, phones, computers, radios. Mechanical waves somewhat relate to this since radios produce sound;so an EM wave would turn into a mechanical vibration inside a speaker then sound would be produced.
I thinks it is a NUTRIENT
Answer:
Crossing over
Explanation:
Please see the attachment
