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A baby can hold its head up and reach for objects
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Period: to
zygote
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Period: to
Zygote
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Period: to
embryo
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Heart beats regularly. Eyes and ears begin to form
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Heart develops right and left chambers
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Period: to
Fetus
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Infant begins to crawl
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Bones are visible. Heartbeat can be heard with a stethoscope
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Fingerprints form
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Eyelids can open and weight can be up to 6.6 pounds.
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Ovulation in females, and sperm production in males begin.
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Skin starts to become wrinkled
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Aging begins.
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Aging becomes more noticeable and progresses rapidly