Which of these statements is true about biogeochemical cycles? a) in biogeochemical cycles, nutrients are not synthesized anew but are recycled in the biosphere b) in biogeochemical cycles, nutrients are not recycled in the biosphere but are synthesized anew c) in biogeochemical cycles, nutrients are not recycled in the biosphere but are depleted.

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.

What amino acid is coded for by this sequence after the mutation

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.