28. Human Development

Which of these statements regarding the early stages of embryonic development is false?

Which of the following structures of an embryo are derived from the ectoderm?

Which of these characteristics is shared by both amniotic eggs and placental mammal eggs during embryonic development?

Which of the following occurs during the embryonic development period from weeks 3 to 8?

During which stage of early embryonic development do the primary germ layers form?

Which of the following statements is true of prenatal development in humans?

At what week of embryonic development does the differentiation of the external genitalia begin?

During embryonic development (weeks 3-8), which organ develops and is fully functional by the end of the first trimester?

What is a characteristic of the gastrula stage of embryo development?

Which of the following occurs during the embryonic period?

Which structure of the amniotic egg most closely surrounds the embryo?

At what point during embryonic development does the embryo form three germ layers?

During embryonic development, what major event occurs during gastrulation?

Which of the following developmental events is correctly matched with its trimester?

Why does organogenesis begin with neurulation during embryonic development?