Answer:
Explanation:
Muscle contraction is stimulated by the movement of an action potential moving along a nerve fiber to the muscles. This event follow some series of process before being stimulated.
1. The impulse arrives at the synapse and travels through the transverse tubules.
2. The muscle impulse reaches the sarcoplasmic reticulum and calcium is released.
3. Calcium floods the sarcoplasm and binds to troponin molecules leaving active sites.
4. Tropomyosin molecules bind to exposed active sites, linking actin and myosin.
5. Thin filaments are pulled over the thick filaments.
6. The muscle fiber shortens and contracts.
Can be a number of things, rain fall quota, climate, population, vegetation..any of those.
Answer:
8
Explanation:
What is the number of white blood cells permitted in a unit of leukoreduced red cells? 8 g/dL owing to chemotherapy with a drug known to cause bone marrow depression and immunodeficiency.
Answer:
that means they are not a prey to any animal
