ANATOMY

Detailed explanation-1: -Skeletal muscle looks striped or “striated” – the fibres contain alternating light and dark bands (striations) like horizontal stripes on a rugby shirt. In skeletal muscle, the fibres are packed into regular parallel bundles.

Detailed explanation-2: -Cardiac muscle has branching fibers, one nucleus per cell, striations, and intercalated disks. Its contraction is not under voluntary control.

Detailed explanation-3: -Answer and Explanation: The correct answer: The most distinguishing characteristic of muscle tissue is D) the ability to transform chemical energy into mechanical energy. Muscle tissue has the ability to convert the available chemical energy into mechanical energy in the system.

Detailed explanation-4: -Cardiac myocytes are joined together via intercalated discs, which coincide with Z lines. They appear as lines that transverse the muscle fibers perpendicularly when examined with a light microscope.