The muscles of the body are part of the musculoskeletal system but would not operate without the system providing the impulses that cause the muscles to act.

endo:

regulates body hormones, aldosterone, vasopressin

neural:

signal, regulates body using electric signals, reflex

endo has to do with hormones; aldosterone and vasopressin are both hormones. i also had this question and got it right : d

it should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time

the statements that apply here about binary star system are

"have stars that might appear to wobble"

"often have one star that is brighter than other"

a binary star is a star system consisting of two stars revolving around their common barycenter. systems of two or more stars are called multiple star systems.

answeranovulation;