Which dimension of grandparenting includes cultural needs and expectations of what grandparents are to do, such as passing on the family history to the grandchildren?

The chance of developing depression following major life stress is doubled in people who inherit a gene involved in the transmission of ______.

a. viruses that strike during infancy b. proneness to migraine headaches c. radical nucleotides d. serotonin

One way that infants can pick words out of spoken language is the stress, or emphasis, that is placed on certain words

a. True b. False Indicate whether the statement is true or false