what is hypothesis.....???
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A hypothesis is a proposed explanation for a phenomenon. For a hypothesis to be a scientific hypothesis, the scientific method requires that one can test it. Scientists generally base scientific hypotheses on previous observations that cannot satisfactorily be explained with the available scientific theories.
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In such cleavages, the entire cell is divided equally. Four major holoblasticcleavage types can be observed in general: radial, spiral, bilateral, and rotational. Egg cells that have larger quantities of yolk undergo meroblasticcleavage after fertilization, in which only a portion of the zygote undergoescleavage.
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