Human Evolution Welcome to your Human Evolution 1. Lamarckism cannot explain Weak muscles in the son of a wrestler Long, narrow, limbless body of snakes Webbed toes in aquatic birds Heterophylly2. The first scientist who proposed his theory of evolution was Lamarck Wallace Darwin Mendel3. Which one of the following is not a vestigial part in human beings? Third molar on each side in each jaw Finger nails Coccyx Segmental muscles of abdomen4. The brain capacity of Homo erectus was about 1200 c.c 1600 c.c 900 c.c 650 c.c5. The prehistoric man which lived on Earth during late Pleistocene period was Peking man Atlantic man Neanderthal man Australopithecus6. During a study session about evolution, one of your fellow students remarks, "The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result". To correct your friend's misconception Overproduction of offspring leads to a struggle for survival Only favourable adaptations have survival value Spontaneous mutations can result in the appearance of new traits Characteristics acquired during an organism's life are not passed on through genes7. The cranial cavity of the modern man was 450-650 c.c 1300-1600 c.c 600-900 c.c 900-1000 c.c8. The extinct human who lived 1,00,000 to 40,000 years ago in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating forehead, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was Cro-Magnon humans Neanderthal human Ramapithecus Homo habilis9. The extinct human ancestor who ate only fruits and hunted with stone weapons was Homo erectus Australopithecus Ramapithecus Dryopithecus10. The theory of Natural selection was proposed by Wallace Darwin Mendel Lamarck11 out of 10Please fill in the comment box below.