Answer:
to write a table of contents you will need to list your chapters from first to last.
Explanation:
if you have a table of contents you need to write, you can list your chapters and the page numbers in the comments and I can type it up for you.
456,224 makes the gene show the promoter and 1204
Answer:
The Respiratory system allows the entry of oxygen into the body and releases Carbon Dioxide. The Oxygen travels across lung tissue into blood vessels and the blood carries the oxygen around the body. Thus the Respiratory and Circulatory systems work together in gas exchange which is vital in Homeostasis.
It's a pyramid of numbers, I believe.