A is correct is the answer
The object that has the same shape as a DNA molecule is ladder.
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What does the range of population tell you that density does not?
The areas inhabited by a population.
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- Hannah ❤
The number of legs that an arthropod has is a very useful characteristic for classifying them into different classes. Insects always have six legs<span> (three pairs) and arachnids have </span>eight legs<span> (four pairs). Crustaceans have at least </span>eight legs<span> and often more, while myriapods can have up to a hundred legs!</span>
