Answer:
<em><u>the North American Continent is ripping itself apart.</u></em>
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Explanation:
<em><u>Landscapes within the western us are characterised by long, parallel mountain ranges separated by down-dropped valleys. These landscapes are a results of continental rifting, or places wherever the continental crust is extending and dilution. because the crust thins, the hot, buoyant layer (the asthenosphere) rises. Eventually, the layer upwells therefore on the brink of the surface that rock that erupts onto the surface. Continental rifting processes are showcased within the steep fault escarpments and active volcanoes that characterize the western us.</u></em>
Answer:
A. excrete sodium ions, B. decrease ECF.
Explanation:
We study about the role of sodium and water retaining hormones in controlling extracellular volume. Several natriuretic hormones may also contribute to the volume regulation. One of the most important natriuretic hormone is atrial natriuretic peptide (ANP). It is a peptide hormone and is released by the cardiac atrial muscle fibers.
Overstretching of atria which can result from excess blood volume, is the stimulus for the release of ANP. Once released it enters into circulation and acts on kidneys to increase the glomerular filteration rate. It also decreases the absorption of sodium from collecting ducts. In other words it increases the secretion of Na+ along with water thereby reducing the blood volume and volume of ECF.
The excess loss of salt along with water helps to compensate for the extra blood volume.
ANP or atrial natriuretic factor (ANF) opposes RAAS i.e Renin Angiotensin Aldosterone System.
Answer:
1. Occupy different niches
Your answer would be B, since you can't make new energy from reactants, but when doing a chemical reaction, it uses energy that was already there to make something new