Dendrite growth is the main reason that brain weight _____ from birth to the age of 2.

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BlackTom AI · Accepted Answer

The question asks about how dendrite growth relates to brain weight from birth to age 2. 
Option 1: triples. This aligns with the well-established pattern that the brain undergoes substantial growth during early childhood due to rapid dendritic arborization, synaptogenesis, and organizational changes in neural networks, which collectively contribute to a roughly threefold increase in brain weight by age 2. 
Option 2: quadruples. While the brain increases a lot in early development, the commonly cited magnitude is not as large as fourfold by age 2, making this option an overestimate in most educational references. 
Option 3: doubles. This underestimates the typical early growth trajectory; although there is rapid growth, brain weight is generally cited as increasing by about three times rather than two, so this option lacks accuracy in most contexts. 
Option 4: decreases. This contradicts established developmental data; dendrite growth and related neural proliferation during this period are associated with increases in brain weight, not decreases. 
Overall, the reasoning about dendritic expansion and network formation supports the idea that brain weight roughly triples from birth to age 2, making the first option the correct portrayal of this developmental pattern.

Intro to Child Psychology Midterm (1-7) Child PSYC 15 - Due 10/24

Dendrite growth is the main reason that brain weight _____ from birth to the age of 2.

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