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1. According to Darwin's theory of evolution, differences between species may be the result of a) the disuse of body structures c) natural selection b) the transmission of acquired d) mutagenic agents characteristies 2. Two nucleotide sequences found in two different species are almost exactly the same. This suggests that these species a) are evolving into the same species b) contain identical DNA c) may have similar evolutionary histories d) have the same number of mutations 3. The diagram below shows undisturbed sedimentary strata at the bottom of an ocean. The fossils found in layer B resemble the fossils found in layer A. This similarity suggests that a) the fossils in layer B were formed before the fossils in layer A b) modern forms of life may have evolved from earlier forms of life c) vertebrate fossils are only found in sediments d) the fossils in layer A must be more complex than those in layer B 4. The theory that evolutionary change is continuous is known as a) Natural selection c) speciation b) Gradual divergence d) continuous variation 5. Transient polymorphism is a) Same characteristics of two different species b) A species that is always moving c) Different versions of two different species d) Different versions of a species 6. Which of the following is not evidence for evolution? a) Homologous structures c) Artificial Selection b) Natural Selection d) Fossil Record 7. Why has antibiotic resistance evolved in bacteria? a) All bacteria reproduce very quickly. b) Bacteria exposed to antibiotics developed a resistance to them. c) Varieties of bacteria resistant to antibiotics reproduce faster than non-resistant varieties. d) Bacteria showing resistance to antibiotics survive after antibiotics are used. 8. Which of the following represent homologous features? a) Wings in birds and insects b) The appendix in humans and horses c) Fins in fish and wings in birds d) The striped coat of the zebra and the tiger 9. Which of the following are used as evidence for evolution? 1. Homologous structures II. Artificial Selection III. Overproduction of offspring a) I and II only c) II and III only b)I and III only d)I, II and III
10. Charles Darwin used domesticated animals to provide evidence for evolution by natural selection. What is this evidence? a) Differences between breeds show that selection can cause species to change. b) The ancestors of domesticated animals can be found in the fossil record. c) Some domesticated animals die because the environment cannot support them all. d) Variation in domesticated animals is due to sexual reproduction. 11. Atoms of AA decay to atoms of BB with a half-hife of 1000 years. If there are 20,000 atoms of AA to begin with, how long will it take for there to be 2,500 atoms of AA? a) 4 years c) 1000 years b) 400 years d) 8 years 12. Two different trees have been classified as Pirtes pisgd and Pints nigra. Which of the following statements is correct? a) Both trees belong to the same class but a different genus. b) Both trees belong to the same family and same genus. c) The species name of both trees is Pinas. d)The family names are rincu and nigra. 13. The correct format to write the binomial name for the Western Gorilla is a) Western gorilla c) Gorillageilla b) Ggorilla d) Westemgorilla 14. The binomial system of nomenclatures used by scientist is a) A means of classifying species b) An international system of nomenclature c) To avoid confusion from translation from different languages d) In order to give names to new species 15. Which phyla of plants have no vascular tissue? a) Filiciporbysa c) Bryophyta b) Andospcemopherta d) Conifroophita. 16. A spider has the following characteristics a) Stinging cells, mouth no anus, radial symmetry. b) Mouth, no anus, bilateral symmetry, are sectioned c) Live attached to rocks, filter feeders, multicellular, nosymmetry d) Have jointed legs, mouth and anus, bilateral symmetry 17. A frog has which of the following characteristics a) Have a mouth and anus, bilateral symmetry and also scales and cold blood. Eggs can be layed on land. b) Have a mouth and anus, bilateral symmetry and also scales and cold hlood. They hy cogs in water. c) Have a mouth and anus, bilateral symmetry and also moist skin and cold blood. They lay eggs in water. d) Have a mouth and anus, bilateral symmetry and also feathers, warm blood and scaly legs 18. A jellyfish has the following characteristics a) Mouth, no anus, bilateral symmetry, often parasitic b) Stinging cells, mouth no anus, radial symmetry. c) Have jointed legs, mouth and anus, bilateral symmetry. d) Mouth and anus, bilateral symmetry, visible blood vessele
19. A tapeworm has the following characteristics a) Mouth and anus, bilateral symmetry, visible blood vessels b) Have jointed legs, mouth and anus, bilateral symmetry. c) Mouth, no anus, bilateral symmetry, often parasitic d) Stinging cells, mouth no anus, radial symmetry 20. A sponge has the following characteristics a) Have jointed legs, mouth and anus, bilateral symmetry b) Mouth, no anus, bilateral symmetry, often parasitic c) Stinging cells, mouth no anus, radial symmetry d) Live attached to rocks, filter feeders, multicellular, no symmetry 21. Which of the following will promote variation in a species? I. Meiosis II. Fertilization III. Natural selection a) I only b) II only c) I and II only d) I, II and II
22. A collection of four animal specimens is observed and a dichotomous key is applied. Which specimen is an arthropod? a) Non-segmented symmetrical body b) Non-segmented non-symmetrical body c) Segmented body with jointed appendages d)Segmented body with no jointed appendages 23. A poodle and a chihuahua are both dogs and classified as Canis foestifitis. What conclusion can be made? a) They belong to the same genus but not the same species. b) They are the same species but not the same genus. c) They are different species but can interbreed. d) They belong to the same genus and are the same species. 24. An animal has radial symmetry, a sac-like body with only one opening and tentacles with stinging structures. To which phylum does this animal belong? a) Annelida b) Cnidaria c) Mollusca d)Porifera 25. Which of the following is a characteristic that helps distinguish Platyhelmintha? a) Many pairs of legs b) Flat body c) Hard outer shell d) Presence of mouth 26. Which taxa do Znomthia namina and Zenvrkhig nolisepe share? a) They share the same class but not the same family. b) They share the same species but not the same class. c) They share the same class but not the same genus. d) They share the same family but not the same species. 27. What features distinguish Platyhelminthes from Annelida? 28. To which group do sponges belong? a) Gridaria. b) Eilicinonhyta. c) Porifera d) Mollusca
29. Which phylum does an animal belong to, if it has stinging tentacles and mouth, but no anus? a) Anpelida, b) Cridaria. c) Borifera d) Platyhelminthes 30. In cladistics, reclassification is most likely to occur when ... a) New organisms are discovered b) Evidence of evolutionary relationships are discovered c) Biologists decide that a binomial name is incorrect d) Morphology changes