Answer:
The lymphatic system, or lymphoid system, is an organ system in vertebrates that is part of the immune system, and complementary to the circulatory system. It comprises of a large network of lymphatic vessels, lymph nodes, lymphatic or lymphoid organs, and lymphoid tissues.
Answer:
Red blood cells and the heart causes response to stimuli
The cardiovascular system transports oxygen and nutrients to the cells and transports waste away from the cells
Answer:
All cells arise from pre existing cells.
Explanation:
one of the principles on the cell theory states that all cells came from pre existing cells . The two cells are parent cells who are big enough to undergo mitosis. The 4 cells made out of this event are daughter cells .
Answer:
Oxygen is needed to break the sugar into carbon dioxide, releasing energy the plants can use to stay alive. However, plants also take in energy from the sun(light), carbon dioxide from the atmosphere, and water from the soil; they use all of them in order to make sugar, and release oxygen.
Explanation:
