Penguins and sharks have forelimbs adapted for swimming but do not share a recent common ancestor with a fin adapted to swimming. What term best describes the evolution of these species?

Drag the tiles to the correct boxes to complete the pairs. match the nitrogenous base of dna with its complement.

Which statement best compares aerobic and anaerobic respiration

Ras is a g-protein that is activated when a growth factor attaches to egfr. its activation results in the replacement of a gdp molecule with a gtp molecule, thus allowing a signal transduction pathway to be activated. considering the signal pathway illustrated on this page, what is one potential outcome of a mutation in the ras gene that leads to ras protein hyperactivity. be specific.