According to the text, neurons in a newborn's brain have on average about __________ synapses. By age 2 or 3, the number is about __________ synapses.
A) 100,000; one million
B) one million, 100 billion
C) 2,500; 15,000
D) 15,000; 2,500

Question

Quizplus · Accepted Answer

Neurons in a newborn's brain have on average about 2,500 synapses. By age 2 or 3, due to a process called synaptic pruning where the brain strengthens frequently used connections and eliminates less used ones, the number increases to about 15,000 synapses.

According to the Text, Neurons in a Newborn's Brain Have