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Anna71 [15]
2 years ago
5

You read research that found that first-born children tend to have higher IQs than their siblings. However, you typically earn h

igher grades than your older brother. Scientists might explain this discrepancy by saying that
Social Studies
1 answer:
Karo-lina-s [1.5K]2 years ago
6 0

The best explanation which scientists may give to the result of a younger one having higher grades which is in negation to popular theory is:

  • Research is probabilistic

<h3>What is IQ?</h3>

This refers to the intelligence quotient which is used to measure the analytical skills and ability to solve problems, identify patterns, etc and people with high IQ are considered to be geniuses.

With this in mind, we can see that there is a popular theory that first born children tend to have higher IQs but because a younger one has better grades, scientists are likely to say that the research is probabilistic.

Read more about intelligence quotient here:
brainly.com/question/6352562

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What type of contraction involves the development of tension but no change in length?.
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An isometric contraction occurs as the muscle produces tension without changing the angle of a skeletal joint. Isometric contraction is a static muscle action that helps to maintain the posture. For example, the antigravity muscles. It occurs in the biceps when the arms may be holding a weight. In such a posture, the biceps enlarge due to holding of weight and produces tension but do no increase in length. It stops the flexion of elbow. In such contraction, no work is done, and lesser amount of heat energy is released in comparison to isotonic contractions.

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