7. Flow rate of a straw with a larger diameter is different then a straw with a smaller diameter. I think the straw with a larger diameter will have a higher flow rate because there will be more space for the water to go through.

8. I think people who have coronary heart disease will have a lower heart rate because less blood vessels will be able to go through the person with the coronary heart disease's arteries since less stuff can go through a smaller things. It'll be the same for this disease.

1) arteriosclerosis - when fatty deposits in the arteries causes the walls to stiffen and thicken the walls. The causes are too much fat, cholesterol and calcium. This can restrict blood flow or in severe cases stop it all together, resulting in a heart attack or stroke.

2) hypertension - Un-medically known as high blood pressure and causes the heart to work harder and can lead to such complications as a heart attack, a stroke, or kidney failure.

3) aortic aneurysm - when the aorta is damaged and starts to bulge or eventually tear, which causes severe internal bleeding. This weakness can be present at birth or the result of atherosclerosis, obesity, high blood pressure or a combination of these conditions.

4) rheumatic fever - attack the valves that control the flow of blood through the heart. Incomplete development of the heart or blood vessels before birth may result in defects known as congenital heart disorders.

Citation: http://www.livescience.com/22486-circulatory-system.html

I think the loss of sodium through the process is quite interesting.

Genesis 6:5
The Lord saw how great the wickedness of the human race had become on the earth, and that every inclination of the thoughts of the human heart was only evil all the time.

Genesis 6:6
The Lord regretted that he had made human beings on the earth, and his heart was deeply troubled.

Genesis 8:21
The Lord smelled the pleasing aroma and said in his heart: "Never again will I curse the ground because of humans, even though every inclination of the human heart is evil from childhood. And never again will I destroy all living creatures, as I have done.

Yep, I think bible think that the heart is essential and precious.

The contraction and the expansion of diaphragm helps determines how much air goes into your lungs. When you breathe in, your diaphragm contracts and moves downwards. However when you breathe out, your diaphragm relaxes and moves upwards. The diaphragm is necessary in the act of breathing because it controls how much you breathe in and how much you breathe out.

Alveoli hold the air until it can be "traded" for Carbon Dioxide. If damage is done to your alveolus(alveolies?), the size of the lungs will decrease and that means less of what you breathe passes through the membrane into the bloodstreams.

everything correct :)

There are many different ways to record observations. For example you could use a list, a table, a graph later on, pictures to make the description more detailed and more accurate. However, I find it the easiest to record it on a table. I do that because, if I record it onto a table, I can simplify it so that the table can be made in to a graph later. It is important that you get all the observations correctly because if you don't, then everything written that you do after wards (analysis, conclusion, evaluation) will be wrong and those are what people count the most.

Results Page
Quiz Url : Respiratory System All Quizzes
Theme : Respiratory System Science Quizzes Result: 10/10
Details
Number Actual Your Answer(s)
Review - 1 B B
Review - 2 A A
Review - 3 C C
Review - 4 B B
Review - 5 A A
Review - 6 B B
Review - 7 D D
Review - 8 A A
Review - 9 A A
Review - 10 B B

Analysis is when you study something and try to find out the deeper meaning of it. For example if it's a science data, you question yourself why that happened and how etc. Conclusion is when you summarize briefly all the things that you found out in conclusion. Elements in a good scientific conclusion is to include a brief statement of the main question, brief statement of the data, answer the question "does it match your hypothesis?" and if yes, why and if no, why not. You have to analyze because during analyzing you can clear any points that the reader isn't clear about. We can analyze our experiment when we are done with our experiment and done with the data.. The elements of analysis is discussing the experiment in detail and trying to identify any trends, relationships and patterns in data. Also, you have to find scientific explanations or reasoning for the data from the experiment.

We write a hypothesis when we are done with researching, so that we could predict what will happen in our experiments and our results.

Cells run out of oxygen -> you run out of energy -> muscles feel sore due to the lactic dumped in to the tissues by cells.

Breathing rate goes up
Heart rate goes up
Muscles start contracting and and relaxing
More glucose is used
Because heart pumps blood at a quicker pace, more calories are burned