If a twisted ladder is used as a model of DNA, which parts of a DNA molecule correspond to the sides of the ladder?

Which sentence is an example of a strong conclusion to an autobiography? a. i stayed after school three days in a row to practice onstage in the auditorium. b. i knew i would have to practice all week to memorize my dance for the recital. c. after the recital was over, i knew practicing was worth it, and i was looking forward to my next big challenge. d. on opening night, i danced in front of a packed auditorium.

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

Aperson with age is more likely to catch diseases that healthy people usually don’t catch.what are these infections called?