Detailed Instructions: In this task, you are given a paragraph, and your job is to generate comma-separated entities present in the given paragraph. Generate entities from a given passage in such a way that (i) they are present in the paragraph, (ii) they are non-duplicate, (iii) they underwent a state change during the process. Avoid creating entities that (i) aren't present in the process paragraph and (ii) aren't significant. 
Q: A sperm and egg meet inside a woman's fallopian tube. The fertilized egg, now a zygote, travels to the uterus. The zygote implants in the uterus. The zygote becomes an embryo. The embryo becomes a fetus. The fetus grows for approximately 9 months. The woman gives birth to a baby. The baby grows into a child. The child becomes an adult. The adult mates with another adult. 
A:
sperm ,egg ,fertilized egg; zygote ,embryo ,fetus ,baby ,child ,adult 