D) It can only be used in areas with specific kinds of rivers.
Answer:
The arrector pili muscles contract (piloerection) and lift the hair follicles upright. This makes the hairs stand on end, which acts as an insulating layer, trapping heat.
It will pick up the nail, because the power of the magnet will go through the paperclip, into the nail
hope this helps :D
Answer:
so the difference is
Explanation:
While the digestive system collects and removes undigested solids, the excretory system filters compounds from the blood stream and collects them in urine. They are closely connected in controlling the amount of water in your body.
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