Understanding ossification, the functions of bones, and the elongation of bones in the human body.

What is ossification? What are the functions of bones? How do bones elongate?

Understanding sacomeres, functional differences between skeletal and cardiac muscles, and muscle contraction in the human body. Complete with a diagram of a sacomere.

What is a sarcomere? What are some functional differences between skeletal and cardiac muscles? What happens within the muscle fibers to cause a muscle to contract?

Understanding Barr bodies in somatic male cells.

If the somatic cells of a human male were found to contain one Barr body in their nucleus the most likely chromosome makeup of the individual would be: XO XX XYX XXY XXX

The effect of classical music on the resting heart rate and an explanation of the nervous system.

Where can I find information that classical music can decrease the resting heart rate?

FAMILY PEDIGREE

YOUR SISTER HAS CYSTIC FIBROSIS AND YOU ARE CONTEMPLATING HAVING CHILDREN OF YOUR OWN. YOUR MATE RECALLS HAVING A COUSIN WITH THE DISEASE. WHAT IS THE RISK THAT ONE OR MORE OF YOUR CHILDREN WILL HAVE CYSTIC FIBROSIS? IF YOU CAN DRAW A PEDIGREE OF YOUR FAMILY, ASSUMING YOU HAVE ONLY ONE SISTER AND YOUR MATE HAS ONLY ONE SISTER.