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The heart is an example of which level of organization within an organism?
cell
organ
Otissue
organ system
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The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

Why is it incorrect to say that mitochondria function only as energy factories with cell