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transport system[1]
Friday, July 18, 2008
6:51 AM
moving on from digestion, we will now move on to the next topic: transport in living thing. i am going to come up with one question to research on: what are the differences between the components of the transport system in humans and plants?

firstly, i will start off with human transport system. here is the main overview.

The circulatory system is an organ system that moves nutrients, gases, and wastes to and from cells, helps fight diseases and helps stabilize body temperature and pH to maintain homeostasis. The main components of the human circulatory system are the heart, the blood, and the blood vessels. The circulatory system includes: the pulmonary circulation and the systemic circulation.


the human circulatory system
red indicates oxygenated blood
blue indicates deoxygenated blood


additional information:

pH: pH is the measure of the acidity or alkalinity of a solution.

Homeostasis: the property of either an open system or a closed system, especially a living organism, that regulates its internal environment so as to maintain a stable, constant condition.


you may not be able to understand some of the terms used here. but don't worry. in the next post, i will give you a more detailed explanation on each and every one of them(:


reference:
http://en.wikipedia.org/wiki/Homeostasis
http://en.wikipedia.org/wiki/PH