I need help with this question, please!

Which of the following are the functions of the skeletal system? blood cell production in soft marrow tissues and mineral reserves largest organ of the body for defense and support vitamin d production and pumping blood through vessels voluntary movement and contractile movement

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

The idea of spontaneous generation was disproved by in a experiment involving jars of meat