Operons allow prokaryotes to ... ?

a. replicate DNA at the appropriate time.

b. avoid mutations.

c. keep their DNA organized.

d. conserve energy.

Write complete sentences using vocabulary key abusive, approval, behavior, circumstance, destiny, embarrass, role, valuable

What is the principal part of the underlined verb in the sentence? Have you heard about my trip to the science museum? A. past B. present C. past participle D. present participle

Pedigree : poodle : : A. brand : cow B. label : soup can C. seed : flower D. telephone book : name E. family tree : nobleman

What are the literary elements of a fable?

Which role was Kathy performing in the discussion

Definition of rappel

Write an essay explaining whats good and bad about playing in a school team

A species that is brought to a place where it never lived is considered a native species. true or fale

What evidence leads you to believe that the tone of the passage is academic?

What tone is used in the story to reveal the author's objections against the war? "Ediitha"