You need to test the hypothesis several times and record all results. Once you obtain the same results several times, I think that means its a theory
The parts of the heart are the atria, ventricles, septum, valves. The atria collects oxygenated blood that has returned from the lungs.The ventricles , receive blood from the atria. The septum it separates the left atrium and ventricle from the right atrium and ventricle. Finally, the valves<span> separate the various parts of the heart from one another. They allow blood into places it’s supposed to be and keep it out of places it’s not supposed to be.
Undoubtedly, there are more parts of the heart but these are the main functions.
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Credits to SFGATE</span>
<span>It is identical or nearly identical to the first DNA molecule.</span>
Answer:
This is a lab report you need to do that on your own
Explanation: sorry ask ur mom for help
C. Protons and electrons must be equal as protons have a + charge and electrons are - so they cancel out