Conception also known as fertilization, is when the nucleus of a sperm cell fuses with the nucleus of an egg cell in the uterus thus creating a fertilized egg or zygote that will grow to become an embryo and eventually a fetus. Conception is the fusing of the two cells to create one fertilized ovum.
At least 4 to 5 cups of vegetables and fruits daily.
At 18 weeks the baby can start to hear sound.
Answer:
Three layers of tissue form the heart wall. The outer layer of the heart wall is the epicardium, the middle layer is the myocardium, and the inner layer is the endocardium.