The central nervous system a. consists of the brain and spinal cord b. is the most important and best nervous system c. includes the automatic and other nervous systems d. all of these options

Which of the following is not a major characteristic used to identify minerals? a. hardness c. density b. magnetism d. luster select the best answer from the choices provided a b c d i know it is not d

Look at the picture below . what does this picture represent ?

Number and variety of living organism; includes genetic, species, and ecological types