Which of the following does DNA have that RNA does not? (Check all that apply)

One sugar phosphate
backbone

Two sugar phosphate backbones

Uracil

Thymine

Single helix shape

Double helix shape

Secondary succession would most likely be taking place in a(n)

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what

Select the correct answer. which mutation is harmful to the organism? a. a mutation allowing moths to camouflage better on blackened tree bark b. a mutation making staphylococcus aureus resistant to the antibiotic methicillin c. a mutation inhibiting human immunodeficiency virus from attaching to and entering the cell d. a mutation causing uncontrolled cell division e. a mutation giving plant leaves a bitter taste to discourage herbivores from eating them