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In comparison with the linear trend model, which of the following is not true of the cubic trend model?
Germinal Stage
The first two weeks of prenatal development after conception, characterized by rapid cell division and the beginning of cell differentiation.
Foetal Stage
The developmental stage of a fetus from 9 weeks after fertilization until birth, characterized by rapid growth and development of bodily structures.
Prenatal Period
The stage of development before birth, from conception to birth, focusing on fetal growth and development within the womb.
Conception
The process of becoming pregnant involving fertilization when a sperm cell joins with an egg.
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