What is the function of calcium in skeletal muscles? a: it prevents the myosin head from binding with actin. b: it enables the myosin head to attach to actin. c: it provides energy for muscle relaxation. d: it triggers the myosin head to push the actin.

(6.02 mc)what affect do marine protected areas have on environmental quality? they increase environmental quality by preventing resource overuse. they increase environmental quality by adding new species. they decrease environmental quality by removing all human activity. they decrease environmental quality by adding recycling facilities.