Sexual selection involves: a. fighting for the right to mate b. acquiring characteristics that improve chances of mating c. sexual dimorphism d. all of the above

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

18. which statement about cancer is true?

Asegment of dna that codes for rna and a protein is a