2 Myofiber questions. Help please.?

Question

1. A muscle fiber (myofiber) is a muscle

A) contractile unit

B) cell

C) protein

D) sarcomere

E) A and B are correct

2. A skeletal myofiber

A) has one centrally located nucleus

B) is derived from embryonic cells called myoblasts

C) retains mitotic potential even in the adult

D) A and B are correct

E) A, B, and C are correct

Answer 1

1.  E

2.  B

Answer 2

1. C.  protein

2. E. A, B, and C are correct

Answer 3

1.E) A and B are correct

2.B) is derived from embryonic cells called myoblasts

Answer 4

question 1. a myofiber is a cell

question 2. a skeletal myofiber has one centrally located nucleus and is derived from embryonic cells called myoblasts.