What are the three structural components of a nucleotide? a. a carboxyl, a sugar, and a phosphate b. a phosphate, an amino acid, and a carboxyl c. an amino acid, a carboxyl, and a phosphate d. a sugar, a phosphate, and a nitrogenous base e. a nitrogenous base, an amino acid, and a sugar

2polhiswhere is the energy in a glucose molecule stored? ooa. inside the carbon atomsb. inside the protonsc. in the bonds between the atomsood. inside the hydrogen atoms

Immature bone cells, or osteoblasts, manufacture a protein called osteoid as well as several hormones. because of this, we would expect osteoblasts to contain numerous a) nuclei. b) ribosomes. c) lysosomes. d) golgi bodies.

Which of these is not an example of molecular homology? 1. use of dna and rna as genetic material 2.use of glycolysis as the first step in cellular respiration in both plants and animals 3. the lack of an igf-1 gene in prokaryotes 4. the use of aldolase b to break down fructose in bacteria, plants and animals