Determine whether each structure is homologous or homoplastic.a. Long snout of egg-laying echidna and placental giant anteaterb. Cactus spine and tree leafc. Flippers of dolphins and fins of fishd. Tailbone of human and tail of dogse. webbed feet of ducks and ottersf. true roots and root-like stems of plantsg. wings of bats and flippers of whales