Fingernails grow from the matrix. The nails are composed largely of keratin, a hardened protein. As new cells grow in the matrix, the older cells are pushed out, compacted and take on the familiar flattened, hardened form of the fingernail.. :3
Answer: 8
Explanation: Just took it today and was right
This is a true statement. Carbohydrates are mainly used in our body and is essential to life.
Jump up into the air as high as you can. Land softly and immediately lower into the next rep.
Do as many reps as possible in 45 seconds.
Answer:
Ignition sources
Explanation:
Lightning
Smoking
Electrical and mechanical sparks
