Geosphere contains the Earth itself from litosphere until Earth's interior. It contains the rocks and minerals we step on. It contains both continental and oceanic crusts. It doesn't contain the gases living organisms breathe or those that trap solar radiation, nor does it <span>it provides a medium for water to move between earth’s surface and the air.</span> The best answer is it provides a medium for cycles that provide nutrients to living organisms. Nutrient cycles often occur in land or soil.
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By the most general biophysiological definition<span>, the </span>biosphere<span> is the global ecological</span>system<span> integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, hydrosphere, and </span>atmosphere<span>.
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Answer:
The best answer to fill in the blank here would be: The origin that elevates a structure is generally located above that structure. Thus, the full answer would be: In a muscle, the origin that elevates a structure is generally located above that structure.
Explanation:
Muscles are pretty fascinating tissues and their combined power is what allows humans beings, and other animals, to move. Aside from that, muscles are perfect energy utilizers, force producers and heat producers that will enable a person not just to move, but to survive. In regards to movement, muscles are able to produce movement because their fibers originate usually at a bony structure, above the structure to be moved, and insert themselves on the insertion point of the structure that can be moved. The force of the fibers to produce motion happens when the fibers, under neural stimulation, begin to collect, or pull themselves from their insertion point towards their origin, bringing with them the structure that has to be moved.
In response to a decrease in the concentration of blood <u>oxygen</u>, the kidneys secrete <u>erythropoietin</u>.
In the field of biology, erythropoietin can be described as a hormone that helps in the production of red blood cells (RBC). As red blood cells are the sites that carry oxygen in the blood, more red blood cells mean that the concentration of oxygen will increase inside the blood.
Erythropoietin, which is also referred to as haematopoietin, is produced inside the kidneys. The interstitial cells of the kidneys are the main sites for the production of erythropoietin.
Erythropoietin is produced by the kidneys as a kind of response mechanism when there are decreased levels of oxygen inside the blood. When the oxygen level in the blood reaches a normal level, the production of this hormone is lowered by the kidneys.
Although part of your question is missing, you might be referring to this full question:
In response to a decrease in concentration of blood __________, the kidneys secrete __________.
calcium; renin
oxygen; erythropoietin
sodium; aldosterone
potassium; ADH
glucose; insulin
To learn more about erythropoietin, click here:
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Mutations<span> lead to </span>genetic variation<span> by making random changes in an organism's genetic code. This can </span>causes<span> a different protein to be created or none at all.</span>