Answer:
Electromagnetic waves can travel through a vacuum, that is an empty space, whereas mechanical waves cannot. They need a medium to travel such as water or air. Ripples in a pond are an example of mechanical waves whereas electromagnetic waves include light and radio signals, which can travel through the vacuum of space.
Explanation:
Water. the only 4 macromolecules are nucleic acid, carbohydrate, lipids, and protein
I think its because so the plants can absorb more nutrients from the soil while being sturdy and wide so when the plant gets snowed on it doesn't break<span />
Answer is somatic; autonomic
The peripheral nervous system is made up of two systems; the somatic nervous system and the autonomic nervous system.The somatic nervous system is under voluntary control and transmits signal from brain to muscles, whereas he autonomic nervous system controls involuntary actions to regulate physiological functions such as working of cardiac muscles, bladder.
