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Dmitrij [34]
3 years ago
15

Enzymes and pH 2. What is the pH scale?

Biology
2 answers:
eduard3 years ago
4 0
How acidic or basic/alkalized a substance is
topjm [15]3 years ago
3 0
It is a measure of how acidic/basic a liquid is. The range goes from 0-14, with 7 being neutral. pHs less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base.
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Impulses originating in the part of the brain called the medulla would most directly affect which body structure?
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The question is incomplete. The complete question is:

Question: Impulses originating in the part of the brain called the medulla would most directly affect which body structure?

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Answer:

d. The heart

Explanation:

The medulla oblongata contains a number of reflex centers for regulating vital body functions such as heartbeat, breathing, and vasoconstriction. The medulla contains several nuclei, a collection of neuronal cell bodies.

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Terms matched with the right definitions.  

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Commensalism is a type of relationship between organisms of two species where one organism benefits from the relationship and the other organism is not affected by it (neither benefits nor harmed).



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3 years ago
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