Question relating to the mind

Question

25. The nerves that carry information from the sense organs to the spinal cord and brain, and from the spinal cord and brain to the glands and muscles, are collectively known as the 
a. parasympathetic nervous system 
b. sympathetic nervous system 
c. central nervous system 
d. peripheral nervous system 

26. If the correlation between variable A and variable B is -0.75, then 
a. we can use measurements of variable A to make moderately accurate predictions of variable B 
b. there is no consistent relationship between variables A and B 
c. there is a relationship between variables A and B, but it has been growing weaker over time 
d. the mean value of B is less than the mean value of A 

27. Under what circumstances can we use a correlation to infer that one variable causes another variable? 
a. under no circumstances 
b. the correlation coefficient is -1 
c. the correlation coefficient is 0 
d. the correlation coefficient is +1 

28. Which phrase best describes Darwin's concept of natural selection? 
a. inheritance of acquired characteristics 
b. dominant traits are expressed over recessive traits 
c. humans evolved from chimpanzees 
d. reproduction of the fittest 

Answer 1

question 25 D.... admittedly not a great question in it wording.

question 26 A a correlation between results shows a connection but not a cause-and-effect relationship.

question 27 A a correlation just means things are somehow related but not that one thing causes the other.

question 28 D Darwin's theory is sometimes called survival of the fittest. Survival means living well and passing on your genes to offspring so it encompasses the idea of reproduction.

Dr. Jane