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Life's history

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Across
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The entire set of proteins expressed by an organism's genes.
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The study of the similarities and differences in the genomes of different species.
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The emergence of new traits or features during evolution.
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The complete set of RNA transcripts produced by the genes of an organism.
Down
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phylum of multicellular pore-bearing organisms, commonly referred to as sponges
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phylum of marine invertebrates, commonly known as comb jellies
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The study of how organisms grow and develop.
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The scientific name of a specific ctenophore species being studied.