Which stage immediately follows fertilization and precedes implantation?

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Multiple Choice

Which stage immediately follows fertilization and precedes implantation?

Explanation:
Immediately after fertilization, the zygote is formed. This fertilized cell then begins rapid mitotic divisions (cleavage) without growing in size, producing 2-cell, 4-cell, and increasingly many cells. The next stage after these divisions is the morula, followed by the blastocyst, which is the form that implants into the endometrium. Implantation occurs after the blastocyst has formed, so the stage that directly follows fertilization and precedes implantation is the zygote.

Immediately after fertilization, the zygote is formed. This fertilized cell then begins rapid mitotic divisions (cleavage) without growing in size, producing 2-cell, 4-cell, and increasingly many cells. The next stage after these divisions is the morula, followed by the blastocyst, which is the form that implants into the endometrium. Implantation occurs after the blastocyst has formed, so the stage that directly follows fertilization and precedes implantation is the zygote.

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