Worksheet in the Womb Questions

Name: _____Key ______Period: ______

“In the Womb Identical Twins”- National Geographic DVD Questions ______Directions: Based on the information from the DVD, please answer the following questions.

FERTILIZATION

1. What 3 basic needs does the mother provide to the fetuses? Oxygen Food Supply Shelter 2. Why are there so many differences between if they are the only natural human clones on earth? Because of the cells and how they divide.

3. Why do identical twins share a stronger bond than fraternal twins? They actually have the same amniotic sac and are also from the division of cells that are so alike.

4. What were the differences in the video from the 4 different sets of twins? List one fact. Other video

a. Dennis & David______c. Jake & Tom______b. Daphne & Barbara______d. Jesus & Celso______

AFTER FERTILIZATION 5. Which of the following is in the correct order? a. blastocyst-fetus-embryo-baby-egg b. egg- blastocyst-embryo-fetus-baby c. blastocyst-egg-embryo-fetus-baby d. blastocyst-fetus-egg-embryo-baby

6. What are the 3 potential epigenetic events that occur that lead to identical twins developing differences:?

7. What are the consequences to the fetus when sharing small quarters in the womb? Lack of

8. What did the documentary provide in relationship to hormonal fluid secretion which some scientist believe may influence individuals sexual orientation?