Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Q: In a brief period between World War I and World War II the Kingdom of Yugoslavia, successor to the Kingdom of Serbia, formed a ''Small Entente'' loose union between Czechoslovakia, Romania and Yugoslavia.

A: Which replaced the Kingdom of Serbia?
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Q: We're always looking for well-written reviews of books, music, movies, television shows, websites, video games and other products. When writing a review, concentrate on exactly what you liked or didn't like. Give examples of strengths and weaknesses, be descriptive and provide background information on an author, director, actor or musician, if possible. Find professional reviews in magazines or newspapers and see how reviewers deal with their topic, but be sure to express your own voice in your review. Grammar Hint for Reviews: When describing a book, movie, album or anything else, use the present tense. Book Reviews Discuss an author's technique, strengths and weaknesses instead of focusing on the plot. Does the story flow? Is there a strong sense of character and place? Did you stay up until dawn to finish it? Is it good reading for teenagers? What influence did it have on you and why? If you've read other books by the same author, discuss how this book compares. Movie Reviews Think of the major Oscar categories and consider the performances, music, lighting and setting, etc. Do these work together? Did some hold up while others didn't? If the movie is based on a book, discuss whether one is better than the other and why. If the movie is a remake, compare the film to its original. Remember that a well-written movie review should discuss strengths and weaknesses. Some readers may not have seen a movie yet, so don't give away an exciting scene or the ending! College Reviews Begin by providing an overview of the college, including location, size and a description of the campus and/or dorm life. Think about all aspects of your college visit. What academic, athletic and after-class programs are available? What are the students like? What makes the college different from others? Every school has strengths and weaknesses. Be objective. Consider what the school has to offer and who might enjoy or benefit the most from attending there.

A: Which aspects should be included in all three reviews?
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Q: The sperm and egg dont look anything like a human baby ( Figure 1.1). After they come together, they will develop into a human being. How does a single cell become a complex organism made up of billions of cells? Keep reading to find out. Sexual reproduction happens when a sperm and an egg cell combine together. This is called fertilization. Sperm are released into the vagina during sexual intercourse. They swim through the uterus and enter a fallopian tube. This is where fertilization normally takes place. A sperm that is about to enter an egg is pictured below ( Figure 1.1). If the sperm breaks through the eggs membrane, it will immediately cause changes in the egg that keep other sperm out. This ensures that only a single sperm can penetrate an egg. It will also cause the egg to go through meiosis. Recall that meiosis, cell division that creates the egg, begins long before an egg is released from an ovary. In fact, it begins prior to birth. The sperm and egg each have only half the number of chromosomes as other cells in the body. These cells are haploid, with a single set of chromosomes. This is because when they combine together, they form a cell with the full number of chromosomes. The cell they form is called a zygote. The zygote is diploid, with two sets of chromosomes, one from each parent. A human zygote has two sets of 23 chromosomes, for a total of 46 chromosomes (23 pairs). The zygote slowly travels down the fallopian tube to the uterus. As it travels, it divides by mitosis many times. It forms a hollow ball of cells. After the ball of cells reaches the uterus, it fixes itself to the side of the uterus. This is called implantation. It usually happens about a week after fertilization. Now the implanted ball of cells is ready to continue its development into a baby boy or girl.

A:
how do eggs develop?
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