Human Evolution Welcome to your Human Evolution 1. The theory of Natural selection was proposed by Lamarck Darwin Wallace Mendel2. The brain capacity of Homo erectus was about 1600 c.c 900 c.c 650 c.c 1200 c.c3. The extinct human ancestor who ate only fruits and hunted with stone weapons was Australopithecus Dryopithecus Homo erectus Ramapithecus4. Lamarckism cannot explain Heterophylly Weak muscles in the son of a wrestler Webbed toes in aquatic birds Long, narrow, limbless body of snakes5. The prehistoric man which lived on Earth during late Pleistocene period was Atlantic man Australopithecus Neanderthal man Peking man6. 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 first scientist who proposed his theory of evolution was Darwin Wallace Lamarck Mendel8. 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 Ramapithecus Homo habilis Neanderthal human Cro-Magnon humans9. The cranial cavity of the modern man was 1300-1600 c.c 900-1000 c.c 600-900 c.c 450-650 c.c10. Which one of the following is not a vestigial part in human beings? Segmental muscles of abdomen Finger nails Third molar on each side in each jaw Coccyx11 out of 10Please fill in the comment box below.
