Higher forms of life such as humans and other mammals generally reproduce- A-by both sexual and asexual reproduction
B-only sexually
C-only asexually ​

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

What process occurs during cellular development as the cell changes into a specific type of cell with specialized functions? a. binary fission b. fusion c. differentiation d. meiosis

What are the characteristics of subsystem