Natural selection is best described as a. disruptive selection
b. stabilizing selection
С. a mechanism of evolution
d directional selection

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.

Awave has a wavelength of 15 mm and a frequency of 6 hertz. what is its speed?

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?