1. Contraction
2. Actin
3. Tendons
4. Epidermis
5. Dermis
6. Acne
7. A nerve signal from the brain arrives at the intersection of the nerve and muscle cells and releases acetylcholine from the neuron. This triggers chemical changes in the muscle cell involving ions, including Ca2+. Calcium triggers the thick filaments, made of myosin, to attach to the thin filaments, made of actin, in the muscle cell, and the myosin pulls the actin toward the center of the muscle cell. ATP causes the release of the actin fibers, allowing the muscle to relax and the process to begin again.
For Penn Foster.
Yes and to add to that it also is divided into many specialized field which then cover their morphology
He should respond Accordingly
After reading the information given above, the use of the enviropig should only be used after assessing all of the risks, costs, and the benefits. The risks could possibly outweigh any of the benefits the enviropig could have. In the U.S the USDA always tests anything before consumer consumption. The correct answer choice is 2.
