savanahlines2
contestada

1) Muscles are organs composed mainly of muscle fibers.

True
False

2) Muscles appear striated, or striped, because their cells are arranged in sheets.

True
False

3) Involuntary contractions mean they are not under conscious control.

True
False

4) Contractions of skeletal muscle are involuntary.

True
False

Respuesta :

1. Muscles are not organs, but are TISSUES composed mostly of fibers. The answer is false.
2. Muscles appear striated because of the alternating bands of two proteins, actin and myosin, which make up the muscle fibers. This answer is also fails

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