1.
Name the fluid which helps in keeping the surface of the heart moist and protects it from
shocks and injuries.
2.
Name the byproducts of anaerobic respiration in plants.
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Answer:
pericardial fluid is the serous fluid secreted by the serous layer of pericardium into the pericardial cavity...
The by products of anaerobic respiration is lactic acid or ethanol and ATP
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