Embryo should be the answer
Answer:
Muscle contraction is an example of mechanical contraction.
Explanation:
Muscular contraction is the activation of generating tension which appear in the muscle fiber as it does't change the length of muscle and is followed by muscular relaxation.
Muscle contraction is based on force and length.
The process of skeletal muscle contraction is an energy requiring process.
In order to perform mechanical work,actin and myosin utilizes the chemical energy into ATP that ultimately require during muscle contraction and relaxation.
In a working muscle,glucose is released from glycogen that are stored in the muscle by the process of glycolysis in which glucose broken down into ATP that is required by cells and tissues.
Answer:
Maintain homeostasis.
Explanation:
Homeostasis is the ability to maintain a stable internal state. All organisms need to maintain homeostasis and must regulate their internal environment to process energy and stay alive. Rubbing your arms and shivering is your body's natural response to getting colder and trying to warm up. The students body is responding to the cold environment in order to maintain homeostasis - in this case the proper body temperature of 98.6°F or 37°C.