The Brain Extract

What is the weight of an adult human brain?

• Three pounds

• One pound

• Four pounds

• Two pounds

What is the consistency of a human brain often compared to?

• Sand

• Water

• Air

• Firm jelly

What is the main factor that allows humans to thrive in different environments?

• Hardwired brain

• Livewired brain

• Genetic mutations

• Preprogrammed routine

How many synapses does a child have by the age of two?

• 50 trillion

• 75 trillion

• 100 trillion

• 25

What happens to synapses that are not useful in the brain?

• They are strengthened

• They are eliminated

• They multiply

• They stay dormant

What does the atuhor call the process when the brain eliminates unnecessary synapses?

• Pruning

• Strengthening

• Connecting

• Growing

What is the main difference between the brains of baby animals and human babies?

• Human babies are born with hardwired brains

• Baby animals are born swimming

• Baby animals have more synapses

• Human babies have more flexibility

How does the brain change as a child matures?

• It becomes less flexible

• It grows new cells

• It forms more synapses

• It prunes unnecessary connections

What is the main advantage of having a livewired brain?

• Higher intelligence

• Faster physical development

• Quick adaptation to new environments

• Increased memory capacity