Which of the Following Statements Are True of Fertilization and Embryonic

Which of the following statements are true of fertilization and embryonic development? (Read carefully and select all of the correct statements.)

A) Fertilization usually takes place within the body of the uterus.
B) Implantation usually occurs 5 to 8 hours after fertilization.
C) The zygote has the diploid number of chromosomes and begins to divide by mitosis.
D) The first 18 weeks of human development are the embryonic phase.
E) In fertilization, the tail of the sperm cell creates an opening in the egg cell membrane
F) The cells of an 8-cell embryo are still very similar to one another.
G) The outer layer of the blastocyst will become the embryo.
H) Cell divisions of the zygote are collectively called cleavage.