GRADE 12 LIFE SCIENCES (new content framework) Exemplar Assignment: Evolution - evidence MAY 2011 MARKS: 70 TIME: 1 hour 10 minutes This assignment consists of 10 pages. Copyright reserved Please turn over INSTRUCTIONS AND INFORMATION Read the following instructions carefully before answering the questions. 1. 2. 3. 4. Answer ALL the questions. Write ALL the answers on your ANSWER SHEET. Start EACH question on a NEW page. Number the answers correctly according to the numbering system used
Premium Evolution Paleontology Fossil
NOVA: Australia’s First 4 Billion Years NOVA’s four part videos "Australia’s First 4 Billion Years" takes viewers on a rollicking adventure from the birth of the Earth to the emergence of the world we know today. With help from host and scientist‚ Richard Smith‚ we meet titanic dinosaurs and giant kangaroos‚ sea monsters and prehistoric crustaceans‚ disappearing mountains and deadly asteroids. The visuals (both real and computer-generated) are beautiful‚ and the stories are clearly and engagingly
Premium Evolution Dinosaur Paleontology
Fossils A fossil is the prehistoric remains of a plant or an animal. Fossils are usually are kept at their best when they are buried under many layers of sand and mud. Under the great pressure from the ground‚ the sand and the mud become sedimentary rock. The minerals combine forming a mould of the plant or animal under the ground. A fossil can be a trace fossil or a body fossil. A body fossil is what actual organic material from a creature or plant (like a bone). Trace fossils are signs of
Premium Fossil Sedimentary rock Geology
Pangea supercontinent from space‚ as it may have looked 300 million years ago. The Earth is a little over 4.5 billion years old‚ its oldest materials being 4.3 billion-year-old zircon crystals. Its earliest times were geologically violent‚ and it suffered constant bombardment from meteorites. When this ended‚ the Earth cooled and its surface solidified to a crust - the first solid rocks. There were no continents as yet‚ just a global ocean peppered with small islands. Erosion‚ sedimentation and
Free Geologic time scale Earth Evolution
Neo-Darwinism is the name given to the new age and evidence supporting the theory of evolution which includes the evidence discovered by Darwin and Wallace as well as newly found modern evidence. Neo-Darwinism builds onto previously discovered evidence and combines it with the modern evidence to form strongly supported hypotheses and evidence to support the theory of evolution. Evidence include that of the fossil record‚ comparative anatomy and embryology‚ as well as molecular biology and experimental
Premium Evolution Fossil Evolutionary biology
In 1969‚ Stan Taylor began excavating an area of the Paluxy River bed in Glen Rose‚ Texas. This river runs through the middle of Dinosaur Valley State Park and is infamous for its dinosaur tracks. In the particular section of the river in which Taylor was working were both tracks of a dinosaur and a human which had been preserved in the mud. A cross section showed the pressure exerted By each and the human print showed more pressure on the ball and heel of the foot forming the arch in the mud
Premium Dinosaur Fossil Isaac Newton
For me‚ the obvious pick was the Triceratops. Like the Tyrannasaurus Rex‚ the Triceratops was quite popular in the Jurassic Park films. It was mostly known for its three huge horns and long stretched out neck frill (protecting its neck). Unfortunately‚ the movies and cartoons depicted the Triceratops poorly because it in fact wasn’t capable of charging at larger predators and withstanding the punishment with its skull. Triceratops skulls have been found with Tyrannosaurus Rex toothmarks clearly‚
Premium Dinosaur Paleontology Cretaceous
The video Dawn of Humanity is an interesting lesson about trying to bridge that gap between the Australopiths and homo genus. They briefly talk about previous finds such as Lucy and the different characteristics of Australopiths and homos. We watch how Professor Lee Berger worked with a group of scientist and climbers to explore a cave system that held thousands of bone fragments. Two cave climbers Steve and Rick were the ones who originally found the bones and took photos of them to show their friend
Premium Skull Bone Evolution
Quetzalcoatlus northropi is an azhdarchid pterosaur known from the Late Cretaceous of North America and one of the largest known flying animals of all time. It was a member of the Azhdarchidae‚ a family of advanced toothless pterosaurs with unusually long‚ stiffened necks. The Quetzalcoatlus was first discovered in Texas in 1971 by geology graduate student Douglas A. Lawson. The feeding habits of Quetzalcoatlus are controversial. Originally‚ it was assumed to catch fish and crustaceans‚ like most
Premium Dinosaur Extinction Paleontology
Dinosaur Energy Ever since the discovery of the first dinosaur in 1824‚ scientists and laymen alike have been fascinated by the lives of these awe-inspiring prehistoric reptiles. How did they live? What were their insides like? How fast did they go? At the heart of these and many other such questions about these “terrible lizards” is the main controversy: were dinosaurs warm or cold-blooded? This complex scientific issue relates deeply to understanding the biology and lifestyles of these creatures
Premium Dinosaur Paleontology Cretaceous