Read historical perspectives on page 55. which viewpoint do you agree with the most? explain your choice.

Which of the following is an example of negative reinforcement? a.marty knocks over his mother's prize fern so she gives him a time out. b.gwen mows the lawn and her dad takes her out for ice cream. c.tara takes an aspirin, and her headache begins to go away. d. peter comes in late from his lunch and is fired from his job.

How many neutrons does an element have if its atomic number is 40 and its mass number is 156?

Describe african kingship what were its attributes how did this system affect africa