________ is characterized by individual differences such as race, age, physical ability, and sexual orientation.

By the time a baby is born, the original zygote has become about 100 trillion cells

Indicate whether this statement is true or false.

In the 1950's, Emily had a procedure done to her in which the doctor used an instrument to cut the nerve fibers connecting her prefrontal cortex to the rest of the brain

This procedure, called _____________, left her withdrawn and unable to care for herself. a. ECT b. deep brain surgery c. a lobotomy d. transcranial stimulation