Answer:
You have external defense systems, which include your skin, tears, mucus, saliva, stomach acid, cilia (small hairs) and helpful bacteria. The skin, nails and hair form the integumentary system, which stops dirt and pathogens from entering the body.
Answer:
D. a continuous rise and fall of water in season oceans
Answer:
New moon, first quarter, full moon, and last quarter.
The soap is basic and the juice is acidic because the ph of the water is 7 and it’s neutral. If the ph is lower than 7, it’ acidic and if it’s higher than 7 it’s basic
This is potential energy because while he was aiming at a bull's eye target, he is storing energy
