In each case, all the component parts would have to evolve simultaneously in order to function properly. Discuss three other structures which defy evolutionary explanation. Describe one insect that was transitional between a non-flying insect and a flying insect. During the Industrial Revolution, dark-colored peppered moths appeared in larger numbers during environmental changes. Evolution teaches that mammals evolved from reptiles.
All reptiles have a single bone in the ear and on average six bones on each side of the lower jaw.
Speculate how intermediate forms could have managed to hear and chew, while the necessary restructuring was taking place and the Organ of Corti was being developed. Explain your answers. Oil and gas, trapped within permeable sedimentary rock, remains at high pressure. The Oort Cloud was first theorized by Dutch astronomer Jan Oort in 1950 to account for the existence of short period comets. If the universe is billions of years old, orbital mechanics require that spiral galaxies and galaxy clusters should have blurred or spun apart long ago.