1. Locomotion and Digestion
... functional element of the skeletal muscle. The division of the muscle into motor units lets the muscle's strength of contraction to be finely graded (required for coordinated movements of the skeleton). Muscles that require a finer degree of control have smaller motor units (fewer muscle fibers per neuron) than muscles that require less precise control but must exert more force. ... harbor thriving colonies of bacteria within their intestines, and bacteria are a major component of feces. Bacteria that live within the digestive tract of cows and other ruminants play a key role in the abi...
- Word Count: 9019
- Approx Pages: 36
- Has Bibliography
- Grade Level: Undergraduate