Using a Standard Treadmill Test, I Observe That Today's 30-Year-Olds

question 9

Multiple Choice

Using a standard treadmill test, I observe that today's 30-year-olds are more aerobically fit than are today's 60-year-olds. Which of the following is the LEAST plausible explanation of this observation?

• A) Fitness is more highly valued in today's society, so the younger cohort exercises more regularly than the older cohort does now or did when they were 30.
• B) In U.S. society, jobs and lifestyles become more and more sedentary as adults get older. The observed difference thus reflects a genuine change with age, but not an inevitable one.
• C) Inevitable physical changes associated with basic biological aging lie behind the observed difference.
• D) It is more difficult to test the aerobic capacity of 60-year-olds, so the findings are probably misleading.

Identify the various types of allelic relationships such as codominance, complete dominance, and incomplete dominance.

Understand the concept and implications of sex-linked traits and their mode of inheritance.

Comprehend the inheritance patterns of specific traits or conditions like colorblindness, astigmatism, and ABO blood types.

Grasp the concept of genotype and phenotype and their relationships.

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Definitions:

Cultural Value

The importance or worth that a particular group places on specific beliefs, norms, and customs.

The Group

A term often used in social sciences to denote a collection of individuals who interact with one another, share similar characteristics, and collectively have a sense of unity.

Peer Pressure

The impact that a peer group has on an individual, persuading them to adjust their attitudes, values, or behaviors in order to adhere to the norms of the group.

Social Groups

Collections of individuals united by certain relations or bonds, sharing common values or interests, and often function within a recognizable structure.