In this section, you will explore the following questions:

  • What are the stages of fetal development during the first three trimesters of gestation?
  • What the events in labor and delivery?
  • What are the efficacy and duration of various types of contraception?
  • What are causes of infertility and the therapeutic options available?

Connection for AP® Courses

The information in this section is not within the scope for AP®, and you likely studied this information in a prior

In this section, you will explore the following questions:

  • What are the stages in the process of organogenesis in vertebrate animals?
  • What are the anatomical axes in vertebrates and their significance in development?

Connection for AP® Courses

The information in this section is not within the scope of AP®. The formation of organs from embryonic germ layers results from the expression of specific sets of genes that determine cell type. Organogenesis has been

In this section, you will explore the following questions:

  • How does fertilization occur?
  • How does the embryo form from the zygote?
  • What are the roles of cleavage and fertilization in animal development?

Connection for AP® Courses

The information in this section is not within the scope for AP® other than to note that the process by which an organism develops from a single-celled zygote to a multi-cellular organism with specialized cells, tissues, and organs is