Gestational weeks 6-10 are termed the _____ phase.

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Multiple Choice

Gestational weeks 6-10 are termed the _____ phase.

Explanation:
The weeks 6–10 window is described as the embryonic phase because this is the period when the embryo is forming its organs and overall body plan. Embryonic is the adjective used to name this developmental stage, while the term embryo refers to the developing organism itself, not the phase. After this stage, development is typically referred to as the fetal phase, when tissues and organs continue to mature rather than form anew. The other options aren’t phases: one is a specific ultrasound sign, and the other relates to obstetric history (parity).

The weeks 6–10 window is described as the embryonic phase because this is the period when the embryo is forming its organs and overall body plan. Embryonic is the adjective used to name this developmental stage, while the term embryo refers to the developing organism itself, not the phase. After this stage, development is typically referred to as the fetal phase, when tissues and organs continue to mature rather than form anew. The other options aren’t phases: one is a specific ultrasound sign, and the other relates to obstetric history (parity).

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