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130228

Answer:

Explanation:

Some of the most dramatic physical change that occurs during this period is in the brain. At birth, the brain is about 25 percent of its adult weight, and this is not true for any other part of the body. By age 2, it is at 75 percent of its adult weight, at 95 percent by age 6, and at 100 percent by age 7 years. Figure 2.

Answer: Hewo, there! your answer is Below

infant raises up (upper torso, shoulders, and head) with arms when lying face down (on tummy). Neck muscles are developed enough to allow the infant to sit with support, and keep head up

Explanation:

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