Answer: the correct answer is A) All plants should be the same age and health and be given equal amounts of water and sunlight.
Blood first enters the heart's right atrium. A muscle contraction forces the blood through the tricuspid valve into the right ventricle. When the right ventricle contracts, blood is forced through the pulmonary semilunar valve into the pulmonary artery. Then it travels to the lungs
Well those that are in that ecostems could died from no water or the could walk on it and it breaks