An embryonic stage in certain organisms where the blastula has relatively equal-sized cells throughout due to amphiblastic cleavage.
Combines 'amphiblastic' with '-ula' (diminutive Latin suffix), literally meaning 'a small amphiblastic form,' referring to early embryonic structures.
The amphiblastula stage reveals a stunning truth—sea urchins and starfish develop from nearly identical embryonic patterns, yet become wildly different creatures, showing that development is less about the blueprint and more about when genes turn on and off.
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