The human cardiovascular system is considered closed a. blood is continuously circulated in the body. b. blood provides nutrients to organs. c. blood collects oxygen from lungs. d. there are no holes for blood to enter or leave the system.

Match the government contribution to mental health to the issue it was created to address. 1. community mental health act of 1963 first federal funding for mental health care 2. commission on mental health, est. 1977 created to determine the mental health needs of the united states 3. the decade of the brain federal funding invested to research mental illness and functions of the brain

The virus genome and viral proteins are assembled into virions (virus particles) during ) the lytic cycle and the lysogenic cycle in all known host organismsb) the lysogenic cycle onlyc) the lytic cycle onlyd) the lytic cycle in all host organisms but the lysogenic cycle only in bacteria

Which a hammer strikes a compound formed by covalent bounds