The condensation reaction that forms nucleic acid polymers occurs between a group on one nucleotide and a group on a second nucleotide. a. phosphate, hydroxyl b. carbon, carbonc. nitrogenous base, sugar d. nitrogenous base, nitrogenous base

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

Which process transfers heat from inside earth to its surface? convection currents in mantle pulling away of tectonic plates drawing in of tectonic plates convection currents in crust

What is the most common reason for matter changing its state?