Rileys Freaky Fridays

Mrs. McKay asked:


In case your wondering, I am helping my grandaughter. She doesnt like her sciences so I my son and I are trying to help her. Unfortunatly I never took any of this in school so I kind of depend on everyone answering my questions with some detail, so that I may explain it to her. If any of you could help me with answering my other biology questions I would appreciate it!