When air is heated up the molecules spread out and move faster, so heat rises because it is less dense than the cooler air around it.
Wavy hair is a very easy example that this is false. It's a merge between straight and curly hair. Our traits tend to mix and blend together, it's not so simple. Everybody isn't just tall or short, one or the other. Everybody is a different height because it's a mid between your parents.
Quick Answer. Collagen is the protein that all animals have in common, even single-celled animals and creatures such as sponges that lack differentiated bodies. Collagen is a cable-like protein that can calcify into bone, shell or other hard structures.
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Answer:
Cell Bacteria Virus
Explanation:
Assuming it means Eukaryotic cells, they are larger than bacteria. Viruses are smaller than bacteria.
