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Unit 7: Quiz #2. Grade:. «grade». Aquatic Science. Subject:. «date». Date:. 1. Which of the following is the geological time that we are currently in:. A. Pleistocene. B. Oligocene. C. Pliocene. D. Holocene. 2. Which of the following demonstrates sexual dimorphism. A. B. D.
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Unit 7: Quiz #2 Grade: «grade» Aquatic Science Subject: «date» Date:
1 Which of the following is the geological time that we are currently in: A Pleistocene B Oligocene C Pliocene D Holocene
2 Which of the following demonstrates sexual dimorphism A B D C
3 Most genetic mutations A are helpful to a species B are harmful to a species C have no effect on a species D give most species super powers
4 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
5 True or False: Life began in the Cambrian Period. True False
6 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
7 Which of the following organisms would likely be found during the Cambrian Period: A a cuddlefish B an octopus C a brittle star D a lamprey
8 During which time period did modern humans evolve to become the most dominant species on the planet: A Tertiary B Quaternary C Jurrassic D Cretaceous
9 During which of the following time periods did 96% of the current species die off: A Permian B Devonian C Cambrian D Quaternary
10 The end of the __________ Period saw the end of the dinosaurs, ammonites, and many other species. A Permian B Triassic C Jurassic D Cretaceous
11 During which time period did active predation begin: A Silurian B Devonian C Ordovician D Cambrian
12 Radiometric dating involves the loss of which of the following from an atom: A proton B electron C neurtron D neutrino
13 The ostracoderms (shell-skinned) were the first known vertebrates. They developed in which of the following periods: A Cambrian B Silurian C Tertiary D Ordovician
14 During which time period did mammals radiate back to the water: A Jurassic B Cretaceous C Tertiary D Quaternary
15 After a mass extinction the empty niches will eventually (1 to 10 million years) be filled by new species. This is called A adaptive radiation B homologous structures C analogous structures D repressive radiation
16 ________ of all species that have every existed are now extinct A 15% B 55% C 86% D 99%
17 The Silurian period is characterized by stability within the environment & the first appearance of which of the following: A chordates B vertebrates C gnathostomes D craniates
18 Which of the following time periods involved the evolution of tetrapods & their invasion of the terrestrial environment: A Devonian B Silurian C Carboniferous D Triassic
19 The Earth is approximately: A 3.55 million years old (myo) B 3.55 billion years old (byo) C 4.57 million years old (myo) D 4.57 billion years old (byo)
20 Mammals & avians (birds) developed during which of the following periods: A Triassic B Jurassic C Carboniferous D Cretaceous
21 Which of the following is not a type of mammal that developed during the Cretaceous Period: A monotreme B marsupial C precocial D placental
