Some studies indicate that increased screen time could be responsible for all of the following EXCEPT

While visiting an exhibit on seventeenth-century life, Rachel noticed that the adult clothing and shoes seemed to be quite small. The curator explained that current generations are taller than past generations, a phenomenon known as _____.

(A) the secular trend

(B) obesity

(C) genetic predisposition

(D) more exercise

Explanation:

The Secular tendency is a general, regular and persistent movement of a variable over a long period of time, which discards the ups and downs of cyclical fluctuations and the periodicity of seasonal variations. In this sense it is understood to represent the broad general character that the series points out during that period.

The answer is: (A) the secular tendency. 

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4 years ago

The main effect of the warm-up period of athletes, as the muscle contractions increase in strength, is to ________. A. increase

Ugo [173]

Answer: B. tone the muscles and stabilize the joints for the workout

Explanation:

Warm up exercise helps to activate the muscles via stretch reflex when the muscles are lengthened. It helps to loosen the muscles and joints and thus helps to prevent any kind of injuries.

There are basically three steps of warm up. namely, loosening of joints , stretching of muscles, pumping of the heart, and practising of the actual movements of the exercise. All these ultimately increase the muscle's capacity to work and also stabilizes the joints to prevent any kind of injury.

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4 years ago