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

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.

answer/// the nucleoid region contains dna; ///