A supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
The cardiovascular system includes the heart. the respiratory system (lungs) supply's oxygen to the heart which, in turn, keeps it beating. the blood carry's the oxygen to all the parts of the body.
hope this helps.<span />
Answer:
<u>Data:"</u>A set of measurements taken by the researcher or the person who is carrying the project is called as Data." It can be relating different measurements taken on small scale or on a larger scale.
<u>Reasonable Hypotheses: </u>"It is a theoretical explanation for an idea or any event relating any field of science or arts. As the hypothesis is presented on the base of a limited set of data or evidences."
Since, there was no point mentioned. So, i hope it helps.
This is easy. you move the decimal so there is one non-zero digit to the left of the decimal point. The number of decimal places you move will be on the exponet of 10. If the decimal is being moved to the right, the exponet will be negative. If the decimal is being moved to the left, the exponet will be positive.
In this case you are moving to the left so it's positive.
The answer will be ' 1.43 × 10^9 '