The sperm and ovum that joined to become you each had only one half of each of the pairs of chromosomes that belonged to your father and mother. The process that created the sperm and ovum is known as ____

HarryHarlow found that infant monkeys preferred surrogate mothers that provided ________

A) warmth B) contact comfort C) imprinting D) food

While Alfred Binet is generally credited with creating the first test used to measure intelligence, this is actually a bit of a mistake! The test that he developed, in fact, measured a child's __________

a. processing speed b. mental age c. mathematics skills d. verbal fluency