Help me plz owo with thes owo

The cardiovascular system, which transports blood through the body, is a one-way system. select the best answer from the choices provided. t f

Does indrect sunlight does not pose any danger to the skin

Why is important to cover your hands and feet in cold weather? a. they are furthest from your heart. b. they are often last to receive blood flow. c. they can suffer from tissue damage in cold weather. d. all of the above