development for each of the life stages of an individual
Life Stage Physical Intellectual Emotional Social Development
Development Development Development
Fertilisation and When the sperm combines The zygote’s brain has not No emotional development No social development has
conception with the egg, it fertilises the yet begun to develop and has occurred at the occurred at the fertilisation
egg and their chromosomes form yet, and this will not fertilisation and conception and conception stage yet.
combine to make 46 begin until the next life stage stage yet.
chromosomes – 23 from the – pregnancy. However, the
sperm and 23 from the egg. genetic information from the
When the sperm cell and egg sperm cell and the egg has
meet and fuse together, they already combined and has
both combine to create a been passed down to the
zygote. Within 24 to 36 hours zygote, for further
of being fertilised, the single development during
cell – the zygote – divides pregnancy.
into two cells, then 12 hours
later into four cells, and so
on. The zygote continues
dividing to form a cluster of
cells called a morula. After
around 3 – 5 days, the
morula travels through the
fallopian tubes into the uterus
where it implants on the
uterus wall. When the morula
has implanted itself on the
uterus wall – this process is
called implantation – which is
around 6 days after
fertilisation, the, now, cluster
of cells form a hollow cavity,
known as a blastocyst. The