Exam 3: A: The Biological Bases of Behaviour

Which statement best reflects the roles of heredity and environment in shaping our behaviour

If you destroy one particular area of its brain,a rat will lose all interest in food and may well starve to death.Which area is it

Skin colour is determined by three to five gene pairs.Based on this information,what type of trait is skin colour

What is the distinction between afferent and efferent nerves

What does the endocrine system do

Ricardo just came back from seeing a neurologist.Ricardo tells you that he will be having a test in which images of his brain will be recorded after he drinks a radioactive sugar solution.What test will his neurologist be using

What is an action potential

Through which type of nerves does the brain send messages to the skeletal muscles in the legs when you are walking

Assume that trait X is primarily an inherited characteristic.Imagine that trait X is investigated using family studies,twin studies,and adoption studies.Briefly describe each of these three methods and indicate what information each would be expected to yield regarding trait X.

Which term refers to the convoluted outer layer of the cerebrum

Aretha had severe epilepsy,and surgeons removed portions of her hippocampus to control the severity of her seizures.What ability is likely to be affected by Aretha's surgery

Trevor Trevor is going for a run. He starts thinking about all the things that he needs to do throughout his day, and he decides that after he showers he will study for his midterm for a little while before he goes to work for the evening. As Trevor rounds the corner near home, he sees something move near his feet and then feels a sharp pain in his right leg. At this point, Trevor's heart rate increases substantially, as he spins away from the dog that just bit him. As the dog's owner apologizes and puts the dog back on its leash, Trevor's heart rate slows down and he then makes his way home. -What would an evolutionary psychologist say about Trevor's physiological responses to the frightening experience of being bitten

What is the term for the minimum length of time between action potentials

Fiona puts her hands into a bucket of lukewarm water; Luke puts his hands into a bucket of ice-cold water.What should we predict about each of their action potentials

Research has identified a "pleasure centre" in rat brains,and researchers have determined that rats will press a lever thousands of times to have a tiny electrode stimulate this area of the brain.What brain area is it

If a monkey's mirror neuron fires when he sees another monkey reaching for a stick,in what other situation should that same neuron fire

How many chromosomes does a zygote contain

Trevor Trevor is going for a run. He starts thinking about all the things that he needs to do throughout his day, and he decides that after he showers he will study for his midterm for a little while before he goes to work for the evening. As Trevor rounds the corner near home, he sees something move near his feet and then feels a sharp pain in his right leg. At this point, Trevor's heart rate increases substantially, as he spins away from the dog that just bit him. As the dog's owner apologizes and puts the dog back on its leash, Trevor's heart rate slows down and he then makes his way home. -As Trevor is running,what area of his brain is sending signals to his muscles so that they will move

What is NOT one of the main functions of neurons

By altering brain structures,an evil scientist has created supervillains who have specialized powers or abilities.One of these supervillains is absolutely fearless and takes on extremely dangerous missions.What brain structure was most likely altered to produce this particularly fearless supervillain