Embryonic characteristic which evolutionarily creates
Write down the embryonic characteristic which evolutionarily creates echinoderms proximal to chordates?
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The Echinoderms and chordates are deuterostomes, that is, in their embryonic development blastopore turns in anus. All further animals with complete digestive system are protostomes, that is, their blastopore originates mouth. The blastopore is the first opening of digestive tube which appears in embryonic development.
Until the Krebs cycle, aerobic respiration can be explained devoid of mentioning oxygen, the chemical element subsequent to which the reaction gets its name. Where in the procedure does this chemical element take part? What is its significance?
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