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Unit 4 (Fetal Development (2 Months (Size of a kidney bean, webbed…
Unit 4
Fetal Development
2 Months
Size of a kidney bean, webbed fingers
3 Months
7-8 centimeters, fingerprints are now in place
1 Month
Two layers of cells, baby is an embryo
4 Months
13 centimeters, skeleton starts to harden
5 Months
27 centimeters, eyelids are formed
6 Months
Weighs about 660g, skin starts to smooth out
7 Months
More than 40cm, can open and close eyes
8 Months
Weighs about 2.2kg, lungs are well developed
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Fertilization
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Fusion of sperm and egg, activation of zygote
Child Development
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2-5 years - first steps, explore their environment
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