Unit #7 Quiz #3

1. Unit #7 Quiz #3 Grade: «grade» Aquatic Science Subject: «date» Date:

2. 1 Which of the following can be considered an analogous structure: A The wings of butterfly & the wings of bats B The pectoral fins of ray-finned fish and the pectoral fins of cetaceans (dolphins/whales) C The hind legs of dogs and the hind legs of horses D The pectoral fin of a walrus & the pectoral fin of a dolphin

3. 2 The Triassic period followed the Permian period. The Triassic is characterized by the largest _________ event in recorded history. A Extinction B Adaptive radiation C Total population D Allopatric speciation

4. 3 The fossils of Tiktaalik roseae, a fish-like animal that crawled out of the water, is the transitional species between fish and modern tetrapods. This species existed in the __________ period. A Cambrian B Silurian C Devonian D Permian

5. 4 A species of fish living in a coral reef changes the color of its scales (over generations) from yellow to blue. This is an example of A microevolution B macroevolution C co-evolution D homologous structures

6. 5 Which of the following is the shortest geological time period: A Period B Epoch C Era D Eon

7. 6 The bone structure of a bottle-nosed dolphin pectoral fin and the bone structure of the pectoral fin of an Orca (whale) are very similar. This is an example of A Co-evolution B Homologous structures C Analogous structures D Microevolution

8. 7 Which of the following is the longest geological time period: A Period B Epoch C Era D Eon

9. 8 All of the following are adaptations for moving from an aquatic environment to a terrestrial environment, EXCEPT: A eyes moving from the side of the skull to the anterior portion of the skull B fins thickening into muscular leg-like limbs C the caudal fin/tail disappearing D bones become more dense to support the full weight on the organisms

10. 9 Which of the following organisms would likely be found during the Cambrian Period: A Megalodon (ancient shark) B Lamprey C Sea urchin D Octopus

11. 10 When considering terrestrial versus aquatic feeding styles, all of the following are true, EXCEPT: A The pectoral girdle of terrestrial organisms is reduced B The skull of an ancient aquatic organism is/was less flexible than their terrestrial counterparts C Terrestrial organisms developed my stronger and sharper teeth for tearing the flesh of prey D The snout & jaws become elongated and the articulation of the jaw improves

12. 11 Homo sapiens have been on the planet for approximately: A 5,000 years B 106,000 years C 1.8 million years D 200 million years

13. 12 During which period did hominids first evolve A Tertiary B Quaternary C Jurassic D Cambrian

14. 13 True or False: The swimming motion of a fish and the walking motion of a tetrapod are very similar. True False

15. 14 Using the graph, which of the following fossils is the most contemporary: A Acanthostega B Tiktaalik C Panderichthys D Eusthenopteron

16. 15 All of the following are examples of mammals that have moved back to the water, EXCEPT: A Cetaceans B Hippopotamus C Pinnipeds D Chondrichthyes