Which best describes DNA? A. a molecule that looks like a twisted ladder
B. both answers about DNA are correct
C. a molecule present in all living things

Sara goes on a slingshot ride in an amusement park. she is strapped into a spherical ball that has a radius 3*10^2 of centimeters. what is the volume of air in the spherical ball? use this formula: volume of a sphere=4/3pi, r^3 , where r is the sphere’s radius.

Nkentucky, intoxicating beverages (beer, whiskey, wine, etc.) are involved to some extent in approximately % of collisions fatal to pedestrians.

Abacteriophage typically attaches to the bacterium and then