Given a scientific passage and an answer, generate a question for the given answer.

Q: Passage: The embryo develops from a fertilized egg. While still inside the seed, the embryo forms its first leaf (cotyledon) and starts to develop a stem (hypocotyl) and root (radicle). Answer: cotyledon

A: What is the name of the first leaf developed inside an embryo?
****
Q: Passage: The placenta allows nutrients and wastes to be exchanged between the mother and fetus. The fetus is connected to the placenta through the umbilical cord. Answer: umbilical cord

A: What connects the fetus to the placenta?
****
Q: Passage: Most reptiles reproduce sexually and have internal fertilization. Their eggs are amniotic, so they can be laid on land instead of in water. Reptiles do not have a larval stage, and their hatchlings are relatively mature. Reptile parents provide little if any care to their young. Answer: amniotic

A:
Most reptile eggs can be laid on land, not in water and they are called what?
****