1 Hydrostatic skeletons use _____ pressure inside a body wall.A) air B) water C) muscle D) gas E) gravitational 2 _____ initiate bone development; _____ form from them; and _____ break down and reabsorb bone.A) osteoblasts, osteocytes, osteoclast B) osteoclasts, osteocytes, osteoblasts C) osteocytes, osteoblasts, osteoclasts D) osteocytes, osteoclasts, osteoblasts E) osteoblasts, osteoclasts, osteocytes 3 _____ joints can perform movement in all directionsA) hinge B) combination C) sliding D) gliding E) ball-and-socket 4 What is the source of energy for actively contracting muscles?A) fatty acids B) fructose C) glucose and glycogen D) triglycerides E) sucrose 5 In the development of the musculoskeletal system across species,
how has convergent evolution manifested itself?A) produced flight through one unique pathway B) produced terrestrial movement through several pathways C) produced flight once D) produced terrestrial movement that works with gravity E) produced flight through many pathways