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Life's history

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