Ib Psychology // Biological Approach Test Questions And Answers 100% Verified A+ Guaranteed

Give at least 2 reasons why it is difficult to establish a cause and effect relationship in regards to localization based on its methods. {Ans: Ethics in psychology prevent accurate cause and effect relationships from being established in regards to localization. The studies done on localization are non invasive when done on humans and because of ethics, researchers are not able to directly manipulate parts of the brain to see what function is affected. This forces psychologists to use more naturally occurring experiments so that they can study people who have already had a certain part of their brain injured and they can see what function is affected and correlate that brain part to that function. These types of studies only determine correlational relationships because there is not direct manipulation of a variable and there is not control over confounding variables in the naturally occurring experiments.}What is the role of mutation in natural selection? {Ans: Genetic mutations occur through offspring and are completely random. (most are harmless/useless/and almost unnoticeable) The environment will change (natural change/human change) and sometimes those mutations can make offspring more or less likely to survive. Mutations that help individuals adapt to their environment will