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Alex
3 years ago
13

In pavlov's classical conditioning experiment, he presented the sound of a bell along with meat powder to his dogs. after severa

l trials, the dogs learned to salivate to the sound of the bell in the absence of the meat powder. if pavlov's dogs did not salivate to a buzzer but only to a bell, then this phenomenon would be an example of ___________.
Biology
1 answer:
Simora [160]3 years ago
6 0
Conditioned stimulus

Classical conditioning is a learning procedure in which a biologically potent stimulus paired with previously neutral stimulus. This pairing will cause a response  that can be the same as the potent stimulus. This is done repeatedly for an organism to elicit a conditioned response to the previously neutral stimulus that was paired to the active stimulus. The dog salivates due to the idea that  food is related to the sound of the bell.
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8 0
2 years ago
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alexandr402 [8]

Answer:

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1 Stomach acid

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6 0
3 years ago
Based on fossil evidence, eukaryotes evolved about _____ years ago. based on fossil evidence, eukaryotes evolved about _____ yea
marshall27 [118]
Fro the answer to the question above,
<span>Based on fossil evidence, eukaryotes evolved about <u>2.1 billion</u> years ago</span>.
<span>Approximately the first single-celled Eukaryotes appeared 2.1billion years</span>.

But the multicellular eukaryotes first appeared at 1.5 billion years ago.
I hope this helps
5 0
3 years ago
A book is sliding along a desktop. Because the book is in motion, you know that the forces acting on the book are ______? What i
Gnom [1K]

Answer:

Normal force, gravity and Friction.

Explanation:

The forces acting on the book are normal formal force which act or exerts by the table on the book while on the other hand, gravity is a force that acts in the downward direction. Friction is the force that acts against the motion of the book and is responsible for lowering speed of the book that is sliding on the surface of the table. If the friction is low between the book and table then the book moves easily on the surface.

8 0
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The plant cell wall
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