Answer:
C. The substance does not directly harm tissues and is not a pathogen, but nevertheless triggers an inflammatory response.
Explanation:
When a person is allergic to a substance, his or her immune system recognizes a harmless substance, such as components in food, pollen, or dust, as a treat. As a consequence, it starts an immune response that leads to inflammation. The substance that starts the allergic reaction is called an allergen, and it is not a pathogen because it is not a real threat to the body since it does not infect cells. When the allergen enters the body, it binds to antibodies that are in contact with a special type of cell. These specific cells will release a substance known as histamine. Histamine will produce an inflammatory reaction affecting different tissues in our body. For example, it can make us sneeze, have a running nose, swelling parts of our body, have itchiness and redness, amongst others.
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Perception...
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Definition-
Real property ,the expansion, redevelopment, pollutant, or contaminant.
They can be located anywhere and can be very small
Answer:
1) <em>Ribosome</em>
<em>2</em><em>)</em><em> </em><em>heart</em>
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<em> </em><em> </em><em> </em><em> </em><em>M </em><em>J </em><em>Schleiden</em><em> </em><em> </em><em>-</em><em>></em><em> </em><em>all </em><em>living</em><em> </em><em>organisms</em><em> are</em><em> </em><em>made</em><em> </em><em>up</em><em> of</em><em> </em><em>cells </em>
<em> </em><em> </em><em> </em><em> </em><em>Rudolf</em><em> </em><em>virchow</em><em> </em><em>-</em><em>></em><em> </em><em>new </em><em>cell</em><em> </em><em>are</em><em> </em><em>arises</em><em> </em><em>only</em><em> </em><em>from</em><em> </em><em>pre </em><em>existing</em><em> </em><em>cells</em>
<em>4</em><em>)</em><em> </em><em>plants</em><em> </em><em>cell</em>
Prairie dogs create a safe home for their young by creating underground burrows.