Which best describes the structure of DNA? A. It has a double helix with repeating bases

B. It has a triple helix with repeating bases

C. it has a double helix with a single base

B. It has a triple helix with a single base

Which of the following claims does the author support the least

Last week i was assigned a thematic. we have groups of three but the people i was assigned with haven't been in school for days. i would appreciate if anyone can me with my thematic . i highlighted most of the important steps and i circled my thematic topic. in desperate need : ( its due on february 19

Pulmonary arteries carry highly oxygenated blood. true or false?