Blood received into the heart from the systemic circuit is
1- high in oxygen and low in carbon dioxide.
2- low in oxygen and low in carbon dioxide.
3- high in oxygen and high in carbon dioxide.
4- low in oxygen and high in carbon dioxide.
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Ответ:
its either number 1 or number 3 because oxygenated blood goes to the heart
Ответ:
top left geosphere. top right biosphere. bottom left hydrosphere. bottom right atmosphere