a competitive team sport played on a rectangular field. This is the american or canadian version of the game and also includes the form known as rugby. It does not include non-north american football (= soccer).
You will also like...
Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..
This tutorial introduces flowing water communities, which bring new and dithering factors into the equation for possible..
Photosynthesis is the process that plants undertake to create organic materials from carbon dioxide and water, with the ..
Mammals are a diverse group of organisms, where most of them develop their offspring within the uterus of the mother. Ov..
The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..