Answer:
The 6 Main Elements are Hydrogen, oxygen, carbon, Nitrogen, calcium & phosphorus
Explanation:
99% of the atoms in the human body come from 6 elements: Hydrogen at about 63%, oxygen (around 25%), carbon (nearly 11%), nitrogen (nearly 0.7%), calcium (0.25%), phosphorus (0.15%) and Calcium which is essential for our bones, & contains 99% of the calcium in the human body
Answer:
The correct answer will be option-D
Explanation:
In case the blood pressure drops in the body, the juxtaglomerular cells of the kidney start converting the prorenin into renin. This renin converts inactive angiotensin to angiotensin I which gets converted to angiotensin II by ACE enzyme.
The angiotensin II acts as vasoconstrictor narrowing the vessels and thus increasing the blood pressure. It also stimulates the secretion of aldosterone which increases the reabsorption of sodium ions and help increase the blood pressure of the blood.
Thus, option-D is the correct answer.
As part of its food safety
program, USDA has simplified food safety rules into clean, separate, chill and cook.
Following these core four practices for food safety helps to prevent bacteria and
to reduce one’s risk of foodborne illness. The rule emphasize on washing of hands
and surfaces often, separating food substances to avoid cross-contamination, cooking
to the safe internal temperature and proper refrigeration of food.
Biodiversity hotspot
A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is threatened with humans. Norman Myers wrote about the concept in two articles in “The Environmentalist” (1988), and 1990 revised after thorough analysis by Myers and others “Hotspots: Earth’s Biologically Richest and Most Endangered Terrestrial Ecoregions” and a paper published in the journal Nature
