Imagine crying yourself happy birthday to sleep :D
Free points if and you can report idrc

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.

List two modern organisms that have pentameral symmetry

Why does the skin of your finger shrink when you wash clothes for a long time?