A double helix made of nucleotides (Adenine, Thymine, Cytosine, Guanine).
Mitochondria and chloroplasts have their own DNA and ribosomes (70S), supporting the Endosymbiotic Theory —that they were once free-living prokaryotes engulfed by larger cells. essential biology note
The "blueprint" of life, shaped like a double helix. Genes: Segments of DNA that code for specific proteins. A double helix made of nucleotides (Adenine, Thymine,
Energy moves through food chains and webs, starting with producers (plants) and moving to consumers (animals) and decomposers. essential biology note