The longest period of prenatal development is the _____ period.

Question

BlackTom AI · Accepted Answer

To begin, let's identify what the question is asking: the longest period of prenatal development.
Option 1: germinal. This period spans from conception through roughly the first 2 weeks, consisting of zygote formation and early cell division, but it is not the longest phase by any means.
Option 2: proximodistal. This term describes a pattern of growth (from the center of the body outward) rather than a developmental period, so it isn’t a prenatal stage length in itself.
Option 3: fetal. The fetal period begins around week 9 and lasts until birth, encompassing the majority of prenatal development and growth, so it is indeed the longest developmental stage.
Option 4: embryonic. The embryonic period covers roughly weeks 3 through 8 after conception, during which major organ systems develop, but its duration is shorter than the fetal period.

In summary, the germinal and embryonic periods are relatively brief compared with the extended fetal period, and proximodistal describes a growth pattern rather than a discrete time span. The fetal period dominates the prenatal timeline, accounting for the longest stretch of development and maturation of bodily structures.

Intro to Child Psychology CHILD PSYC Exam #1 - Due 10/1

The longest period of prenatal development is the _____ period.

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