The heart is made almost entirely of these structures. What do they allow he heart to do. Please answer properly don't send any rubbish or else I will report you.
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The myocardial walls of the heart tube at this stage are formed of so-called primary myocardium. With further development, pronounced changes occur in all parts of the tube so as to produce separate left and right components.
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by WP Robinson · 1975 · Cited by 3 — children's intellectual development and questioning and answering ... jobs can he learned much 'more quickly than We are wont ... occupational structure, and if we do so, we may find it.
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