Bacteria that survive an attack by viruses save a part of the virus's in their own genetic code in a DNA archive called CRISPR until it is needed.

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.