Which of the following statements are not true of carbohydrates?

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity hurry!

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.