Which of the Following Is the Strongest Evidence Supporting the Belief

question 5

Multiple Choice

Which of the following is the strongest evidence supporting the belief that differences among people in their IQ scores are related in part to differences in heredity?

• A) There is a high positive correlation between the IQ of children and the IQs of their parents.
• B) Children adopted by high-IQ parents generally develop higher IQ scores than do children adopted by low-IQ parents.
• C) Children generally have approximately the same IQ score at age 8 that they will have in adulthood.
• D) There is a high correlation in IQ between identical twins who have been adopted by different parents and reared in different environments.

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Definitions:

pH

A scale measuring the acidity or alkalinity of a solution, where 7 is neutral, values below 7 are acidic, and values above 7 are alkaline.

Buffers

Substances that minimize changes in the pH of a solution by absorbing or releasing hydrogen ions.

pH

A logarithmic scale used to specify the acidity or basicity of an aqueous solution, ranging from 0 (very acidic) to 14 (very basic) with 7 being neutral.

Hydrogen Ions

Positively charged ions (H+) that contribute to acidity or alkalinity of solutions and play critical roles in many biological processes.