[Solved] Sam doesn't know much about digital video recorders, so when he went shopping for one, he decided on the model that had the highest price and the best warranty as well as one he had seen a lot of advertising for. Sam used these factors as _____. A) inferential variables B) quality signals C) just noticeable difference cues D) sensory cues E) choice determinants Coral Reefs: Marine ecosystems characterized by reef-building corals; known for their biodiversity, they are often referred to as the "rainforests of the sea." Tropical Waters: Warm ocean water found near the equator, characterized by high temperatures and supporting diverse marine life. Zooxanthellae: Photosynthetic algae found in close symbiotic relationships with marine invertebrates such as corals and sea anemones. Microscopic Algae: Tiny, often unicellular algae, not visible to the naked eye, that live in water and can perform photosynthesis.