When a muscle cell receives a signal from a motor neuron, every sarcomere within that muscle cell is activated. The signal moves from the motor neuron to the muscle cell by crossing the synapse. When acetylcholine binds the sodium enters the T tubules and this causes calcium to be released from the sarcoplamic reticulum. Calcium binds to tropomyosin, which allows actin to bind to myosin and each sarcomere contracts. There is nothing and no way to separate individual sarcomeres. They are all activated together.
Answer:
Native plants do not require fertilizers and require fewer pesticides than lawns. Native plants require less water than lawns and help prevent erosion. The deep root systems of many native Midwestern plants increase the soil's capacity to store water.
Explanation:
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'Homeo' meaning 'similar' and 'stasis' meaning 'stable.' Therefore, homeostasis means it is the process used by the body to maintain a stable internal environment. Either a negative or positive feedback can be used in homeostasis.
Course alteration is the first to be utilized to find the example, and just with the low power objective. When seeing an example, you should dependably utilize the lower control target focal points first. Low power focal point gives the most stretched out field of view and makes it less demanding to discover the example when you look through the magnifying lens. Finding the example at high power, without first focusing it in the field of view at low power, is almost outlandish.