Answer:
The nerves in the integumentary system (skin) sense the irritation and send the signal to the brain. The brain then sends impulses through the nervous system to scratch the itch.
Explanation:i hope this helps u :)
It makes the Earth livable for us creatures. We get protected from the Sun's harmful rays reaching to Earth, which makes Earth feel comfortable. Atmosphere also contains Oxygen and we rely on that everyday.
Enzymes are proteins that catalyze biochemical reactions within cells
B. Resistance is the tendency for materials to oppose the flow of electric charges.
Answer:
if im not mistaken the answer should be the first one
