Social Studies, 10.03.2020 01:36 glogaming16
A pigeon is presented with a blue key and a red key alternatively. In the presence of the blue key, it earns food on a VI 30-sec schedule. In the presence of the red key, it earns food on a VI 15-sec schedule. The VI 30-sec schedule is then changed to a VI 60-sec schedule. As a result, the rate of response on the VI 15-sec schedule , illustrating a contrast effect.
Answers: 2
Social Studies, 21.06.2019 19:00, bayl3ighh
Answer quickly! correct answers only! how did an agricultural surplus relate to expanded trade during the high middle ages? a)trade increased because surplus crops could be traded. b)trade decreased because surplus crops were needed to feed local populations. c)trade decreased because surplus crops led to an oversupply of grains that could not be sold. d)trade increased regionally but decreased globally because trade networks had shrunk.
Answers: 3
Social Studies, 22.06.2019 02:30, Reijected
How was mussolini able to gain power in italy? he played to the prejudices of the italians. he fought off hitler’s attempt to annex italy. he led a coup to take over a weakened government. he proposed new ideas to solve the economic crisis.
Answers: 1
Social Studies, 23.06.2019 16:30, michaelgold1
Which statement is correct? the speed of the light ray is the same in air and medium a. the speed of the light ray is the same in air and medium b. medium a and medium b have different densities because light refracts at different angles. medium a and medium b have the same density because the light ray strikes both at the same angle.
Answers: 3
A pigeon is presented with a blue key and a red key alternatively. In the presence of the blue key,...
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