Posture, ________, is maintained as a result of muscle contraction.
A. Such as singing and painting
B. Such as sitting and standing
C. Such as jumping and skipping
D. All of the above
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I'll be glad to check your answer.
It's B
The correct answer is B. Such as sitting and standing.
To arrive at this answer, let's break down the question. The question states that posture, ________, is maintained as a result of muscle contraction. This implies that the missing word should be an activity or action that requires muscle contraction to maintain posture.
Option A, "such as singing and painting," does not directly involve muscle contraction to maintain posture, so it can be eliminated.
Option C, "such as jumping and skipping," involves muscle contraction but is not specifically related to maintaining posture. Therefore, it can also be eliminated.
Option B, "such as sitting and standing," is the most appropriate answer. Both sitting and standing require muscle contraction to keep the body in an upright position, aligning the spine, and maintaining balance.
As a result, the correct answer is B.