James olds and peter milner (1954) were trying to implant an electrode in a rat's reticular formation when they mistakenly placed the electrode incorrectly. curiously, as if seeking more stimulation, the rat kept returning to the location where it had been when it received a stimulus from this misplaced electrode. on discovering that they had actually placed the device in a region of the olds and milner realized they had stumbled upon a

Which sentence best represents the thesis of this article? a they challenge us to consider whether we can trust what we are seeing. b optical illusions may seem mysterious, but they are not unexplainable. c through science, we can learn how optical illusions work. d let’s take a look at three common optical illusions and explore the science behind each one.

You are a member of the jury for a murder case. the prosecution has presented dna evidence linking the defendant to the crime scene. the defense claims that dna evidence using str analysis with 13 markers is not sufficient to reliably distinguish between people. what do you think? a. the defense is right. str analysis with 13 markers gives a 1 in 1 million chance of two people having the same pattern, leaving a reasonable doubt. b. str analysis is not sufficient. the defendant's entire genome should be sequenced. the prosecution will have to consult a genomic library to make sure their dna evidence is valid. c. the prosecution is right. str analysis with 13 markers gives a 1 in 10 billion or greater chance that two people will have the same pattern. this person was at the crime scene. d. dna evidence is not generally accepted by legal experts.

3. suppose most animals behaved in a certain way. would that provide evidence that it is natural for us to follow their lead? if so, what implications would this have for natural law theory? .