During phase variation there is a choose one: a. posttranslational change in an organism's proteins. b. alteration of an organism's dna. c. posttranscription change increasing the number of rnases produced. d. posttranscriptional remodeling of an organism's rna.

Wht happens as electrons in the electron transport chain release their energy

Which best describes the nucleus of an atom a. it is where all of the particle s of the atom are located b. it is the negatively charged part of the atom c. it is where the electrons and the protons are located d. it is the part of the atom with the greatest mass

In which of the following relationships is one organism always benefited while the other organism is always harmed