Answer:
''A test tube holder is used to hold test tubes. It is used for holding a test tube in place when the tube is hot or should not be touched. For example, a test tube holder can be used to hold a test tube while it is being heated.
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Explanation:
Answer:
Classical conditioning
Explanation:
Sam is trying to condition his dog to salivate to a bell. He rings the bell and immediately after, while the bell is still ringing, he places food in the dog's mouth. Sam is using classical conditioning.
With the continued use of this conditioning, the dog with time will learn to associate ringing of bell to its feeding time.
David Livingstone was a Scottish missionary, whilst Cecil Rhodes was an English businessman. Both somewhat helped kick start more colonization in Africa, with Livingstone creating a general curiosity of the Nile River, while Rhodes is quoted with starting the British Imperialism in South Africa. Rhodes is technically the founder of South Africa, while Livingstone was a missionary and explorer and was very interested in social justices, such as "rags to riches" and held an anti-slavery stance.
At the peak of its power, Mesopotamia is known for its solid city defense and efficient production of Agricultural products.
This happens due to many technological developments that were created by Mesopotamia, such as the development of wheel, Plowing tools, writings, architectural structure, etc.
