Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download test for assesing students
Document related concepts
no text concepts found
Transcript
Name Date Evolution and the fossil record Part 1. 1.On its first evolution, the horse had _______ toes on its front feet. A.Four B.Five C.Six D.Ten 3. What was the approximate size of the first evolution? A.Size of a mouse B.Size of a fox C.Size of a horse D.Size of a bull 4. The first evolution is called A.Mesohippus B.Metamorphosis C.Both A & B D.Eohippus 5. On its first evolution, the horse had _______ toes on its back feet. A.Two B.Three C.Four D.Five 6. Where were the fossils of Eohippus found? A.Africa and Oceana B.Japan and China C.North America and Europe D.Asia and Europe 7. The second evolution is A.Mesohippus B.Equus Caballus C.Both of these D.None of these 8. The first evolution usually lived in A.The deep sea B.The icy mountains C.The desert D.The mushy marsh 9. The skull of the fossils of Eohippus lacked the _________ of the modern horse. A. Round eyes B. Large, flexible muzzle C. Nose D. Teeth 10. Fossils of Eohippus showed A.Triangle-shaped back B. Flat back C. Arched back D. None of these Part 2. Evolution is the gradual change in living things over long periods of time. Scientists usethe fossil record to learn about how organisms have evolved throughout Earth’s history. The diagram below provides information about the age, size, and forefoot anatomy of avariety of organisms in the horse family, Equidae. Would the fossilized remains of Pliohippus be found in a rock layer above or below the rocklayer containing the fossilized remains of Mesohippus? Explain. Equus Recent 1.45–1.60 m high Pliohippus12 million years ago 1.40 m high Merychippus 17– 11 million years ago 0.90–1.20 m high What do you notice about the size of the organismsover time? Mesohippus 40– 34 millionyears ago 0.60 m high Hyracotherium 56–34 million years ago 30–60 cm high What do you notice about the forefoot anatomy of the organisms over time? Scientific studies suggest that having one large toe is more supportive than several smaller toes for horses with a large body mass. Does this make sense, based on your observations inquestions 2 and 3? Explain.
