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
The answer is the 13th Amendment also known as
the Emancipation Proclamation that abolished slavery. This led to the
liberation of slaves in the South. Many
escaped while others joined the Union who invaded the Southern states. It was passed after the Union forces fought
in the Battle of Antietam and Lincoln used that to pass the Emancipation
Proclamation.
The correct answer is C) justice of the peace rulings.
Environmental law is a system of laws that encompass all of the environmental protections that originate from all the sources listed below except <em>"justice of the peace rulings."</em>
In the United States, the justice of the peace rulings sits in the lowest of the state courts to hear minor issues, civil matters and misdemeanors. They also officiate weddings, issue arrest warrants or deal with minor traffic issues.
The Environmental Protection Agency (EPA) is the agency in the United States dedicated to the protection and conservation of the environment and the health of the citizens. EPA procures that the environmental laws are enforced correctly and that the country can have clean air, water, and land.
Answer:
If there was no sun, the weather on earth would drastically change. There would be no natural source of sunlight so it'd be very cold without the sun and it would always be "night time" because there is no sun to give daylight meaning that it is dark.
Explanation:
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