The inner layer surrounding the egg aloows only one sperm to enter the egg. why is this a benefit?

1. "i need to create calories."

2. my friend sitting next to me.

3. answering questions on

4. the show dynasty.

5. 4: 20.

6. 3: 44

7. my friend watching netflix.

8. walking from the car to my friend's house.

9. yes.

10. some.

11. 2 minutes ago.

12. when i wrote "i need to create calories."

12. sea-foam paint.

looks like you are missing options or a image.