Babies are born with billions of brain cells. how many brain connections do babies have by the time they are three years old? describe three factors that
contribute to the brain connections multiplying.

From birth to three years old they produce 700 neural connections. A baby has 100 billion neurons. It multiplies to trillions at two years old, most probably at three it would be quadrillions. Several factors can affect brain development; the surrounding environment, social interaction, and experiences. 5.0.

Explanation:

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explanation:

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.