Which of the following organisms lives near the surface of aquatic biomes because it needs sunlight to survive

6. in the dna double helix, how are the two strands of dna held together? a. chemical bonds between base pairs hold the two strands of dna together. b. hydrogen bonds between the base pairs hold the two strands of dna together. c. hydrogen bonds between sugar groups and phosphate groups hold the two strands of dna together. d. chemical bonds between sugar groups and phosphate groups hold the two strands of dna together.

Four types of motile cells in human body?

Cell specialization occurs by the process ofa. reproductionb. differentiationc. maturationd. growth