Many thousands of years ago, not a single human being lived in the Americas.
This only changed during the last Ice Age. It was a time when most of North America was covered with a thick sheet of ice, which made the Americas difficult to inhabit.
But at some point during this time, adventurous humans started their journey into a new world.
They probably came on foot from Siberia across the Bering Land Bridge, which existed between Alaska and Eurasia from the end of the last Ice Age until about 10,000 years ago. The area is now submerged by water.
There is still debate about when these first Americans actually arrived and where they came from. But we are now getting closer to uncovering the original narrative, and finding out who these first Americans really were. During the peak of the last Ice Age about 20,000 years ago, a journey from Asia into the Americas would not have been particularly desirable. North America was covered in icy permafrost and tall glaciers. But, paradoxically, the presence of so much ice meant that the journey was, in a way, easier than it would be today.
The abundance of ice meant that sea levels were much lower than they are now, and a stretch of land emerged between Siberia and Alaska. Humans and animals could simply walk from Asia to North America. The land bridge was called Beringia.
The 1960 Chilean earthquake reached 9.5 magnitude on May 22 May 1960.
1. Manslaughter - this charge is for instances where the accused did not plan the crime or have intended to kill the victim by their actions. Manslaughter is an unlawful killing that doesn't involve malice aforethought—intent to seriously harm or kill, or extreme, reckless disregard for life. The absence of malice aforethought means that manslaughter involves less moral blame than either first or second-degree murder.
<span>2. First degree murder - </span>It is defined as an unlawful killing that is both willful and premeditated, meaning that it was committed after planning or "lying in wait" for the victim. For example is when you kill with malice. Second degree is when you kill with passion
Answer:
The answer is generalization and operant conditioning, respectively.
Explanation:
Genralization occurs when a subject presents the same response to other similar stimuli. In this case, the rat was conditioned to press the lever in the presence of a red light, but it generalized to white light too.
Operant conditioning is an appraoch to learning that seeks to understand the motivation that drives behaviour. It involves voluntary actions, and explains that subjects are more likely to repeat an action when it is reinforced.
