You can determine density using mass and volume.The equation for that would be D=m/V, which is Density is equal too mass divided by volume. I hope this helped you out!
This is an example of commensalism. It is symbolised as(+/0)
The shark is neither harmed nor benefited by the association.
The remora fish are highly benfitted by protection and food.
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The answer is Genes on the same chromosome are sometimes inherited disparately. I had the exact same question and that was the answer hope this helped! Have a good day!