Examlex
The human eye is sensitive to light with wavelength down to 710 nm.What is the frequency of radiation at this wavelength? (1 nm = 10−9 m and c = 3.00 × 108 m/s)
Birth Defect
A physical or biochemical abnormality that is present at birth and that may affect bodily functions or appearance.
Prenatal Development
The process of growth and development within a woman's uterus before birth.
Embryonic Period
A critical phase of development in early pregnancy, extending from fertilization to the end of the 8th week, during which the basic structures and organs of the organism begin to form.
Fetal Period
The stage of human development inside the womb from the end of the embryonic stage (approximately 9 weeks after conception) to birth.
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