Four chambered heart keeps oxygenated and deoxygenated blood separate and has double circulation while three chambered heart has a single circulation. Two chambered heart only has single atrium and single ventricle
Answer:The farmer uses farm machinery to plot the soil and plant the corn. Energy from the Sun Is stored by the corn plants. When the farmer, animals, or other people eat corn, they gain the energy captured by it.
Explanation:Because it's easy knowledge
Answer:
A hypothesis is a tentative statement that proposes a possible explanation to some phenomenon or event. A useful hypothesis is a testable statement, which may include a prediction. A hypothesis should not be confused with a theory.
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