Over time, a plant pollinated by a hummingbird has developed very long, tube-like flowers. why might the flower have adapted in this way? this is a short answer question i also have to expain why i think this

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.