Answer:
Read the Quran. it tells you how did it begin
She must have the resessive trait on both of her chromosomes. Withought them being on both she would be a carrier.
<span>The chicken experiment serves to explain how behavioral conditioning may be applied to any species. By identifying an appropriate reward for the subject in question, that subject may be taught any physically possible random behavior. Then, if witnessed, the behavior is able to be learned and mimicked by other members of the same or even different species.</span>
C. Ball and socket joints
Just took the test hope this helps :)