______ are the brain chemicals that carry information across the synaptic gap between neurons

Suppose that Aletha is in her first trimester of pregnancy and she begins to experience some vaginal bleeding. Her doctor suspects an ectopic pregnancy, so most likely the doctor will do which of the following procedures?

a. amniocentesis b. chorionic villus sampling c. an ultrasound d. fetal monitoring

Which of the following psychologists viewed middle childhood as involving a conflict between industry vs. inferiority?

a. Piaget b. Kohlberg c. Erikson d. Freud