Precambrian - Study guides, Class notes & Summaries

Why study global change? - Answer--allows us to understand why global temps fluctuate and what causes fluctuations (natural and anthropogenic) -how it affects populations over time -tackling climate change before it things get much worse Why does the Earth change - Answer-1-earth's internal heat makes the asthenosphere weak enough to flow 2-Sun radiation What happens as a result of a weak asthenosphere? - Answer--continental drift -volcanism: enough volcanic outgassing can cause clim...

ANT 2000 QUIZ 3 QUESTIONS WITH ALL CORRECT ANSWERS what is language?` - Answer- symbol-based communication; learned; open system how old is the earth? - Answer- 4.6 billion years how old is life on earth? - Answer- 3.5-4 billion years geological time scale intervals - Answer- eons, eras, periods, epochs how do paleontologists decide when an interval starts and ends? - Answer- when fossil composition of sedimentary rocks changes global time scale (GTS) - Answer- - Precambrian, ...

Second Continental Congress - ANSWER-A convention of delegates from the Thirteen Colonies that started meeting in the spring of 1775 in Philadelphia, Pennsylvania. Managed the Colonial war effort and moved incrementally towards independence, adopting the United States Declaration of Independence on July 4, 1776. Townshend Acts (1767) - ANSWER-A series of British acts passed beginning in 1767 and relating to the British American colonies in North America. Thirteen Colonies - ANSWER-A group ...

Complex multicellular organisms were not present in which Era A) Neogene B) Paleo-Proterozoic C) Mesozoic D) Precambrian - Neogene For a billion years or more, oxygen being produced by cyanobacteria was completely consumed in the process of A) The creation of chlorophyll B) The creation of phospholipid membranes on clay surfaces C) The precipitation of iron from the ocean waters D) Coal formation - The precipitation of iron from the ocean waters Which of the following igneous ...

Which of the following is true about biodiversity on earth? correct answers The presence of some species can alter the presence of other species. To build a phylogeny, you can use correct answers morphology, DNA sequences, developmental data, and fossil features. Communities of bacteria can include all, but which of the following correct answers one prokaryote species alone. Eukaryotes first evolved in which Era? correct answers Precambrian Which of the following is the clade that in...

Evolutionary Analysis, 5th Edition TEST BANK by Herron & Freeman, ISBN: 9780321616678, All 20 Chapters Covered, Verified Latest Edition Evolutionary Analysis, 5th Edition TEST BANK by Herron & Freeman, ISBN: 9780321616678, All 20 Chapters Covered, Verified Latest Edition TEST BANK For Evolutionary Analysis, 5th Edition by Jon C. Herron; Scott Freeman, Verified Chapters 1 - 20, Complete Newest Version TEST BANK For Evolutionary Analysis, 5th Edition by Jon C. Herron; Scott Freeman, Verified Chapt...

MSC 2024 Final Exam 1 Questions & Answers Some of the factors that contributed to the origins of the ocean include: - ANSWERSoutgassing of volcanos, which laster condensed to produce liquid water and Intense bombardment of the early Earth by water-rich comets and asteroids Life on Earth most probably evolved - ANSWERSin the ocean in the scientific method, scientific theories - ANSWERSmust be tested and verified by observations Layered sedimentary structures known as stromat...

(b) 3.5 billion years ago. correct answers Studies of the Precambrian eon have shown that life first appeared on Earth approximately __. (a) 570 million years ago. (b) 3.5 billion years ago. (c) 4.6 billion years ago. (d) 5 billion years ago. (c) pumice Choice (c) is correct. Pumice comes from volcanic rock when it cools very quickly on the surface. The small air bubbles formed in it are visible to the naked eye. The bubbles give it its lightweight feel and increase its usefulness i...

Compared to the age of the Universe of about 14 billion years, the currently accepted age of Earth is about ________ years as determined by using radioactivity for dating rocks and minerals. A) 4.6 thousand B) 4.6 billion C) 5.4 million D) 13.7 billion - B The ________ division of the geologic time scale is an era of the Phanerozoic Eon. A) Paleocene B) Paleozoic C) Permian D) Proterozoic - B The Earth's core was formed from ________. A) a massive nickel iron asteroid that was the n...

Which of the following is an exogenic process? - weathering Which of the following is an endogenic process? - volcanism Uniformitarianism assumes that - the same physical processes we see today are a key to understanding the processes that have been operating throughout geologic time Which of the following is CORRECT regarding the geologic time scale? - The bulk of Earth's history has occurred during the Precambrian eon. Which of the following is NOT a criteria to be classified as a mine...