[Solved] An R-2R ladder circuit is used for: A) analog-to-digital conversion B) analog-to-analog conversion C) digital-to-analog conversion D) digital-to-digital conversion Morphological Features: Traits or attributes of an organism's form and structure, including shape, size, and arrangement of parts, visible under a microscope or with the naked eye. Artiodactyls: A large group of hoofed mammals that includes both domesticated and wild species such as pigs, cattle, deer, and camels, characterized by an even number of toes. Cetaceans: A group of marine mammals including whales, dolphins, and porpoises, characterized by their fully aquatic lifestyle and typically large brains. Fossil Record: The collection of preserved remains or imprints of living organisms found in sedimentary rocks, which provides historical evidence for evolution.