The Results of a Study of 200 Children Between 7

question 52

Multiple Choice

The results of a study of 200 children between 7 and 9 randomly assigned to a 9-month afterschool physical activity program (PA) or a control group revealed __________.

• A)increases in physical capacity of those in the PA program reflected normal development
• B)additional physical activity provided no increased benefits
• C)increases in physical capacity of those in the PA program were far greater than those who did not participate in the PA program
• D)too much physical activity has a negative impact on physical capacity

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Definitions:

Dipnoi

A group of fish also known as lungfish, characterized by their ability to breathe air using lungs in addition to gills.

Actinistia

A subclass of mostly extinct fish, with the modern coelacanths being the only living representatives, characterized by lobed fins.

Coelacanth

A rare order of fish that was thought to be extinct until found alive in 1938, known for its lobed fins which resemble primitive leg structures.

Sacropterygian Fishes

An ancient group of lobe-finned fishes, some of whose descendants evolved into terrestrial vertebrates.