Semi-conservative replication refers to a. each base bonding at the 1' position of the sugar. b. a purine always bonding to a pyrimidine. c. one helix strand that runs from the 5' to 3' direction and the other strand runs from the 3' to 5' direction. d. an original parent dna strand and one newly synthesized dna strand comprising a new dna molecule. e. none of the choices is correct.

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

1. -define adaptation2 explain darwin's theories of descent with modification and natural selection in detail3. -explain how each of these provides evidence for evolution: a. -fossil record, including superposition and transitional fossilsb-anatomy, including homologous structuresc-biological molecules, including dna and proteins4. -explain the difference between convergent and divergent evolution.5. -define and give three examples of artificial selection6. -define and give one example of coevolution.7. -explain biodiversity and how it benefits humans.8. -explain a type of population lest affected by environmental change.

The more rapidly sedimentation occurs, the more likely it is that the remains will successfully form a fossil. as sedimentation continues, what happens to the amount of weight settling onto the organism? stays the same increases decreases cuts in half