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Question

E3 and E2 have common hormones that might be antagonistically regulated or co-regulated, i.e. insulin is activated by E3 in contrast to E2.

antagonistically  قید کدوم فعله؟ regulated  یا co-regulated

Proper embryo development is crucial as that is when the primary body axes are established.

Since the discovery of cellular totipotency acquisition from human cells, it has been shown that the application of insulin can change the balance of insulin levels in the cells modifying insulin metabolism.