Which of the following molecules is the subunit of dna that links together to form strands of dna? a. a codon b. a polymerase c. a phosphate base d. a nucleotide

science-ocean floors and habitats study guide by volleyballqueen3817 a major advance in ocean-floor mapping. list four sections of the ocean floor. algae that use sunlight to produce their own food through photosynthesis. all of the feeding relationships that exist in a habitat. drying out, predators, find food.