1. A
2. D????
3. C?
4. B
5. A????
The human musculoskeletal system<span> (also known as the </span>locomotor system<span>, and previously the </span>activity system[1]<span>) is an </span>organ system<span> that gives humans the ability to move using their </span>muscular<span> and </span>skeletal systems<span>. The musculoskeletal system provides form, support, stability, and movement to the body.</span>
Traditionally, energy crops are used for ethanol production thanks to yeast cultures. But, cyanobacteria can naturally ferment alcohol, such as isobutanol, without the need of yeast cultures. Also, cyanobacteria have a fast life cycle, so it can be produced great amounts of isobutanol for a short period of time.
As part of an immune response to foreign pathogens, histamine is produced by basophils and by mast cells found in nearby connective tissues. Histamine increases the permeability of the capillaries to white blood cells and some proteins, to allow them to engage pathogens in the infected tissues
