A radioactive drop of blood was added to the Left Atrium of an adult heart. Trace the flow of this drop of blood throughout the cardiovascular system: *Left atrium --> __(1)__ --> __(2)__ --> __(3)__ --> __(4)__ -->> systemic capillaries --> __(5)__ --> __(6)__ --> __(7)__ --> __(8)__ --> Right ventricle --> __(9)__ --> __(10)__ --> __(11)__ --> __(12)__ --> Left atrium

preservation because he preserves part of the land and preserves means save

explanation:

b. the carbon cycle ensures living things have a source of hydrogen

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.

cells spend most of their time in interphase