Which of the following is not a structure of the nervous system? A. The brain B. The heart C. The spinal cord D. Cranial nerves

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

25. what does meiosis create? haploids or diploid? somatic cells or gametes?

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases