Which statements are true about the flow of blood in the body? check all that apply. blood picks up oxygen from the cells of the body. blood delivers carbon dioxide to cells in the body. blood picks up carbon dioxide from the cells of the body. blood flows from the heart to the lungs to pick up oxygen. blood delivers sugar and nutrients to cells in the body. blood flows from the lungs to the heart to pick up oxygen.

Ineed to get this test done which of the following statements is correct in hour our immune system responds to a potential pathogen? a.) the skin will be the first line of defense, and then the many phagocytes in the bloodstream will attempt to consume the possible pathogen. b.) b cells will start reading the antigen code immediately and call t cells to assist in destroying the pathogen. c.) the adapted immune system will call on the innate immune system to destroy the pathogen. d.) the t-cells in the adapted immune systems are the first to recognize the pathogen