During extinction, an instrumental behavior may initially increase as the result of
a. a failure of the dog to obey the new instruction.
b. an extinction burst.
c. temporary defiance.
d. punishment resistance.

How can you tell the difference between rough er from smooth er?

Which statement is not an accurate description of meiosis? a) meiosis produces offspring that are genetically diverse. b) meiosis produces offspring that are identical to the parent. c) in sexual reproduction half of the genetic material comes from the father (sperm) and half of the genetic material comes from the mother (egg). d) meiosis decreases the number of chromosomes by half so that when a sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes.

Which of the following organisms are capable of self-fertilization? a.plants b.tigers c.humans