One Problem with Studying Identical and Fraternal Twins Raised Together

question 206

Multiple Choice

One problem with studying identical and fraternal twins raised together or apart is that:

• A) Identical twins that are raised together may be treated more similarly than fraternal twins, which could account for their greater behavioural similarity.
• B) Often twins raised apart have very similar environments.
• C) There is no control over the environments of twins who are raised apart.
• D) Fraternal twins may be male and female whereas identical twins are always either both male or female.

Recognize the ethical considerations and potential for manipulation in segment reporting.

Understand the principles of osmosis and the movement of water in and out of cells.

Describe the mechanisms of salt and water balance in marine and freshwater organisms.

Explain the process of excretion and the role of excretory organs.

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Definitions:

Full Employment

A situation in an economy where all available labor resources are being used in the most efficient way possible, typically characterized by the absence of cyclical unemployment.

Unemployment

The situation where individuals who are capable of working and actively seeking employment are unable to find a job.

Labor Force

The total number of people employed and those actively seeking employment in an economy.

Discouraged Workers

Individuals who are not actively seeking employment because they believe no jobs are available for them or there are no opportunities for which they qualify.