A "stimulus" is basically an event that happens in the outside environment that triggers a response. So, when you touched the dog's ear, that's a stimulus. The twitch is a response! So, A is correct. But just to be sure, let's look at the rest.
Artificial selection (B) is basically breeding: when humans breed organisms in order to obtain desired traits, like breeding dog species--this is not what our example is talking about.
Natural selection (C) is a similar process. When an organism mutates, but it actually helps it survive, it is more likely than the others to survive long enough to have babies. These babies are likely to have the helpful mutation, and so are their babies, and theirs, until a good portion of them have the mutation. This is NOT the example above!
And D, reproduction--well, let's just say it would involve a female dog and lots of babies, but that's not related to our example, so that isn't right either. The answer is A: a response to a stimulus.
Answer: A
Answer:
we should no cut trees everywhere because there is much flood that is caused by trees
Answer:
A Waterways and seas of Europe allowed people and goods to move easily within Europe and other parts of the world
Explanation:
That is the most explained answer. It is definitely not B. Hope this helps!
Answer:
Decreased.
Explanation:
During the reenactment of the experiment, Millgram made a couple of adjustment to his research.
<u>For example, </u>
Rather than someone with known position of authority, millgram use ordinary person to give the order to deliver the shock.
Not only that, He tried to test what the subjects will do if they do not receive the order from the same room as the one that give the orders.
Both of these things decreased the compliance level for around 22%.
Answer:
the answer is A. the Mongols took control of large areas of Asia
Explanation: