Final answer:
The claim that a fertilized egg does not begin to divide until after implantation is false. Fertilization initiates the germinal stage of human development, which includes cell divisions prior to implantation in the uterus.This zygote then begins a series of cell divisions while it travels through the Fallopian tube towards the uterus.
Step-by-step explanation:
The statement 'Human development begins with fertilization, but the fertilized egg does not begin to divide until after it implants in the uterine wall.' is false. Human development actually starts at the moment of fertilization, when a sperm cell and an egg cell unite to form a zygote. This zygote then begins a series of cell divisions while it travels through the Fallopian tube towards the uterus.
The first stage of human development is called the germinal stage, which begins with fertilization in the Fallopian tubes and includes the formation of a morula and then a blastocyst. This stage ends when the blastocyst implants in the lining of the uterus, marking the beginning of the embryonic stage.