Jawapan

2015-09-07T22:33:10+08:00
Invertebrates obtain support from EXOSKELETON and HYDROSTATIC SKELETON.exoskeleton is the outer enclosure that is hard and acts as protector to invertebrates......hydrostatic skeleton system is made up of a series of muscles surrounding the fluid-filled spaces.the fluid pressure will push and press against the walls of the muscles to firm up the body..harap dpt bantu...