Human Biology

http://www.ck12.org Chapter 1. Human Biology

Practice

Use the resources below to answer the questions that follow.

• Follicle Developmentat http://www.youtube.com/watch?v=dwtFYOLFeNw (1:56)

MEDIA

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1. What happens during ovulation? What happens to an egg after ovulation?


2. At what point is a zygote formed? How many chromosomes does a zygote have?


3. Where does implantation occur? Where does development occur?
   
   
   • Oogenesisat http://www.youtube.com/watch?v=-IPZItqRjEQ (2:20)
   
   
   
   

MEDIA

Click image to the left for more content.

1. At what point in a human female’s development do oogonia become primary oocytes?


2. What happens to primary oocytes when a female enters puberty?


3. What happens to a secondary oocyte when it is fertilized?


4. What happens to a secondary oocyte if it is not fertilized?

Review

1. Describe what happens during ovulation.


2. Explain how an egg develops in an ovary of a mature female.