Organizations such as the American Academy of Pediatrics and the American Psychiatric Association recommend that children under the age of ______ should not use electronic media

Chemical substances that affect the functioning of distant body systems and sometimes act as neuromodulators are known as

a. hormones b. glands c. ventricles d. endocrines

While humans have not changed much biologically in the previous 200,000 years, we live in vastly different cultural environments due to our cognitive capacity to formulate ways to change our environments.

a. true b. false