The behavior of human beings can be very complicated. To find out how we learn, scientists often study the activities of animals. Sometimes they see how long it will take for a mouse to reach food in the center of a maze. Sometimes pigeons or other animals are taught to obtain food by pressing buttons. (A) In the first experiments in space flight, trained chimpanzees and dogs were sent into orbit. (B) They proved that living things could carry out certain activities while whirling about in space. (C) One early theory likened human memory to a muscle that had to be regularly exercised in order to function properly. This theory was eventually replaced by the notion that remembering was like writing, with experience the pen and the mind a blank page. (D) But eventually this theory was also rejected. In its place came another hypothesis--that human memory functioned like a complex and well-stocked library catalog. With access to a key word, you could look up any piece of stored information. But over time that theory has also been discarded. Human memory may, in fact, be too sophisticated and too complex to be explained through any one single simile or metaphor. When a paragraph contains two main ideas, it should be divided into two paragraphs. Choose the letter at the point where the passage should be divided. A) A B) B C) C D) D

His is a verbal or oral response to an argument presenting an opposite viewpoint. slanted wordstabloid thinkingappeal to authoritybandwagoncard stacking generalityintertextual referencesname callingplain folks tactics

In just over one hundred years, between 1701 and 1810, 252,500 enslaved africans were brought to barbados—an island that occupies only 166 square miles (making it, today, one of the smallest countries in the world). the english then set out to conquer more sugar islands, starting with jamaica, which they took from spain in 1655. in the same period that the 252,500 africans were brought to barbados, 662,400 africans were taken to jamaica. thus, sugar drove more than 900,000 people into slavery, across the atlantic, to barbados and jamaica—and these were just two of the sugar islands. the english were eagerly filling antigua, nevis, saint kitts, and montserrat with slaves and sugar mills. they took over much of dutch guiana for the same reason. seeing the fortunes being made in sugar, the french started their own scramble to turn the half of the island of hispaniola that they controlled (which is now haiti), as well as martinique, guadeloupe, and french guiana (along the south american coast near dutch guiana), into their own sugar colonies, which were filled with hundreds of thousands more african slaves. by 1753, british ships were taking average of 34,250 slaves from africa every year, and by 1768, that number had reached 53,100. –sugar changed the world, marc aronson and marina budhos how do the authors use historical evidence to support their claim? x(a) they use secondary sources to show how french and english monarchs were indifferent to enslaved people. x(b)they use secondary sources to show that enslaved people often fought for their freedom after arriving in the caribbean. the answer is: (c)they use facts from primary sources to show how countries increased the number of enslaved people to produce more sugar. x(d)they use primary source interviews to show that countries could make more money in trading sugar without using enslaved people.

What is the main idea of this paragraph? asap