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In Robert Frost's classic poem, when he ends with "ice will suffice," the universe is:
Brain Development
The process of growth and change in the brain's structure and function, especially significant during childhood and adolescence.
Neurons
The brain's nerve cells responsible for transmitting information through electrical and chemical signals.
Blood Flow
Blood flow is the movement of blood through the circulatory system, delivering nutrients and oxygen to cells while transporting waste products away.
Secondary Sex Characteristics
The visible signs of sexual maturity that do not directly involve the sex organs.
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