Answer:
When sulfurous, sulfuric, and nitric acids in polluted air and rain react with the calcite in marble and limestone, the calcite dissolves. In exposed areas of buildings and statues, we see roughened surfaces, removal of material, and loss of carved details. Stone surface material may be lost all over or only in spots that are more reactive.
Explanation:
You might expect that sheltered areas of stone buildings and monuments would not be affected by acid precipitation. However, sheltered areas on limestone and marble buildings and monuments show blackened crusts that have peeled off in some places, revealing crumbling stone beneath. This black crust is primarily composed of gypsum, a mineral that forms from the reaction between calcite, water, and sulfuric acid. Gypsum is soluble in water; although it can form anywhere on carbonate stone surfaces that are exposed to sulfur dioxide gas (SO2), it is usually washed away. It remains only on protected surfaces that are not directly washed by the rain.
Answer:
Similarities: both are chemical messengers, both can have (but don't necessarily have) similar structures (made from amino acids), both can be produced by the central nervous system (hypothalamus produces some hormones), certain molecules can act as both hormones and neurotransmitters (example: norepinephrine).
Differences: neurotransmitters are released by neurons across a synaptic gap, have very short distances to travel, and act very quickly on the neighboring cell. Hormones are released by glands and often have to travel longer distances, which means that they are slower-acting. Also, hormones are typically used for regulation (negative feedback) while neurotransmitters are used for stimulation of a neighboring cell.
Explanation:
A glucagon<span>oma </span>may be a terribly<span> rare </span>tumour<span> of the </span>exocrine gland within which there's a rise<span> in </span>unleash<span> of the </span>internal secretion<span> glucagon, </span>inflicting<span> a characteristic </span>efflorescence<span> and raised </span>glucose<span> levels.due to this the </span>glucose<span> level </span>are going to be exaggerated<span>.Diabetes mellitus </span>kind one<span>, </span>additionally referred to as kind one polygenic disorder<span>, </span>may be a sort of diabetes within which<span> not enough </span>insulin<span> is </span>made<span>.[4] This </span>ends up in<span> high </span>glucose<span> levels </span>within the<span> body.where as in glucagonoma high levels of chromogranin A, </span>that may be a macromolecule typically<span> found in </span>tumor<span> tumors, and anemia, </span>that may be a<span> condition </span>within which you've got a low<span> level of red blood cells.</span>
Answer:
the skin cells prevent germs from coming in our bodies
Explanation:
