Investigators linked increased risk of both autism and schizophrenia in children with older mothers

Primary sex characteristics are those parts of the body involving reproductive organs, such as the uterus and testes

Indicate whether this statement is true or false.

Piaget suggested that

a. cognitive development is disorderly and unpredictable. b. all children progress through different and unique stages of development. c. development occurs in a nonlinear and largely random fashion. d. development at one stage is made possible by development in a preceding stage.