virus protist atp receptor translation digestive bacteria circulatory gene peptide prey enzyme metabolism hormone genus phylum vaccine symbiosis antigen species predator nervous habitat reticulum nucleus replication selection muscular fungus mitosis ribosome transcription rna photosynthesis osmosis organism biome mutation meiosis respiratory transport amino genotype heredity dna neuron niche evolution allele genome golgi adaptation stimulus chromosome cellular immunity chloroplast population lysosome synapse
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