How many weeks does it take for a baby to be born
39 weeks
During gestation, the brain of the unborn child starts to develop around month 5
false
Put these processes in the order that they could happen, implantation, fertilization, copulation
copulation, fertilization, implantation
What happens during fertilization
The nucleus of an egg cell joins with the nucleus of a sperm cell
In what part of the reproductive system does fertilization take place
the fallopian tubes
After an egg has been fertilized, roughly how long does it take for an embryo to form?
4 days
When does a placenta start to develop
One week after fertilisation
What is the function of a placenta
Lets the blood of the fetus and mother get very close to allow exchange of food, oxygen and wastes
Why does smoking during pregnancy affect the development of a fetus
the smoke can have chemicals which can get into the mother’s blood and then into the fetus’s blood which can affect the development.
