Human development life stages - Answer prenatal
infancy
toddlerhood
early childhood
middle childhood
late childhood
adolescence
early adulthood
middle adulthood
late adulthood
Germinal Period - Answer first 14 days
fertilization
implantation of zygote
creation of blastocyst
zygote - Answer fertilized ovum
blastocyst - Answer embryo before implantation into uterine wall
Embryonic Period - Answer weeks 3-8
called embryo
some fail to chromosomal abnormalities
placenta formed
brain begins to develop at 3 weeks
embryo - Answer developing mammal following conception; first 8 weeks
Chromosomal abnormality - Answer occurs when a child inherits too many or too few
chromosomes
Fetal Period - Answer weeks 8+
viability about 24 weeks