The right answer is A: intercellular communication.
An example of intercellular communication is the one between the kidney, liver and lungs to preserve water-soluble homeostasis.
Angiotensinogen, an inactive protein produced by the liver, circulates in the blood. It is the precursor of the active peptides angiotensin I and II, and the only substrate of renin.
In the event of a drop in the pressure in the renal artery, renin (an enzyme sometimes considered as a hormone) is secreted in the kidney by differentiated myoepithelial cells of the arteriole afferent of the juxtaglomerular apparatus. There are also other stimuli promoting renin secretion: decreased natremia in the distal convoluted tubule, ß-agonists, hyperkalemia, PGI2 and stimulation of juxta-glomerular cells by the sympathetic nervous system)
The angiotensinogen is cleaved by the renin and forms a decapeptide called "angiotensin I", inactive.
Angiotensin I will then be converted primarily to angiotensin II by a carboxypeptidase, the angiotensin converting enzyme. This enzyme, secreted by the liver, acts at the pulmonary level.
Ionizing radiation, for example X-rays, gamma rays and alpha particles
A Safety Data Sheet refers to a detailed information document prepared by a manufacturer of hazardous chemicals. It describes the physical and chemical properties of the product.
<h3>What is
Safety Data Sheet?</h3>
- A Safety Data Sheet refers to a detailed information document prepared by a manufacturer or importer of hazardous chemicals.
- Describes the physical and chemical properties of the product.
- A safety data sheet provides comprehensive information about a chemical, including its properties physical, health, and environmental hazards; and protective measures or safety precautions to be followed in handling, storing, or transporting materials.
- Safety data sheets inform users about product hazards, how to use the product safely, what to expect if recommendations are not followed, how to recognize symptoms of exposure, and what to do in an emergency .
- Safety data sheets provide information about chemicals and help users of those chemicals to make risk assessments.
- They describe hazards arising from chemicals and provide information on handling, storage, and emergency procedures in the event of an accident.
To learn more about Safety Data Sheet from the given link :
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Answer that does not describe the structure of an atom: The electron clod is a small and compacted space around the nucleus.
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Answer: Atmosphere
Explanation:
Atmosphere is the part of the earth, known as the gaseous part, since it contains gases such as nitrogen (about 78%), oxygen (about 21%), Carbondioxide (about 0.03%), and rare gases to make the rest.
Thus, atmosphere contains the most whole of oxygen and carbon dioxide
