How are messages carried throughout the human body from the brain to the nervous system

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

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

Which ocean is on the eastern coast of north and south america? arctic ocean indian ocean pacific ocean atlantic ocean