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Tomtit [17]
3 years ago
13

An enzyme is a biomolecule that increases the rate of a chemical reaction. An enzyme is a kind of

Biology
2 answers:
Anna007 [38]3 years ago
8 0
An enzyme is a kind of catalyst. Hope this helps:-)
Mice21 [21]3 years ago
7 0
Maybe a factory? If you give it the parts, it will create a product much faster than if you left the parts to themselves.
Not sure if that's what this question is asking... knowing the choices (if there are any) would be helpful.
Hope this helps! :)
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Which level of organization is the largest? phylum, class, order, group
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The Taxonomic rank ( from the largest to the smallest) goes something like this:
Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

So, the largest from your given options is phylum.

Hope this answered your question 
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(Ch. 27.4) Many people are allergic to substances in the environment, such as ragweed pollen, as well as foods, such as peanuts.
djverab [1.8K]

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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