Biology: The Unity and Diversity of Life (MindTap Course List)
14th Edition
ISBN: 9781305073951
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Chapter 19, Problem 3DAA
Summary Introduction
To determine: Whether oxygen or carbon dioxide is more abundant now.
Concept introduction: Carbon dioxide is a colorless gas that consists of a carbon atom, which is covalently double-bonded to two oxygen atoms. It is an important trace of the Earth’s atmosphere. The concentrations of the carbon dioxide and oxygen in the Earth’s atmosphere have varied from the early period to the present day. The variations in the atmospheric oxygen level alter the global climate throughout the planet.
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Chapter 19 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 19 - According to the big bang theory, _______. a. the...Ch. 19 - An abundance of _______ in Earth's early...Ch. 19 - The Changing Earth Studies of ancient rocks and...Ch. 19 - Prob. 2DAACh. 19 - Prob. 3DAACh. 19 - Prob. 4DAACh. 19 - Stanley Millers experiment demonstrated...Ch. 19 - According to one hypothesis, negatively charged...Ch. 19 - The prevalence of _______ in living organisms is...Ch. 19 - Prob. 6SQ
Ch. 19 - Among prokaryotes, only the cyanobacteria _______....Ch. 19 - The evolution of _____ resulted in an increase in...Ch. 19 - Bacteria that cause the disease typhus arc close...Ch. 19 - Infoldings of the plasma membrane into the...Ch. 19 - Prob. 11SQCh. 19 - A stromatolite is a structure __________. a....Ch. 19 - Prob. 13SQCh. 19 - Evidence that Mars __________ suggests that it may...Ch. 19 - Chronologically arrange the evolutionary events,...Ch. 19 - Researchers looking for fossils or the earliest...Ch. 19 - The astronomer Carl Sagan once said, "We are made...Ch. 19 - How did the evolution of oxygen-releasing...
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- An abundance of___________ in Earths early atmosphere would have prevented the spontaneous assembly of organic compounds on early Earth. a. hydrogen b. methane c. oxygen d. nitrogenarrow_forwardPlease both of answer ...arrow_forwardWhich of the following statements about atmospheric carbon dioxide levels is correct? For about 800,000 years prior to human influence it varied between 180 and 300 ppm and is now above 410 ppm. For about 800,000 years prior to human influence it never exceeded 200 ppm. Its rate of increase in the past century is greater than any seen in the ice core record. Both 1 & 3arrow_forward
- Choose the correct statement regarding climate change. See image below for options.arrow_forwardHow much more iridium was found in the K–Pg boundary layer than in rock 0.5 m below it? 41.35 ppb 41.60 ppb 41.24 ppb 39.62 ppbarrow_forwardPart 1. Stratigraphic Dating: A Café Scene Relative dating methods establish the date of something as older or younger than something else rather than anchoring its age to an absolute, scaled timeline, as in absolute dating. So, we determine the sequence of at least two things (two events, two deposits, etc.) and establish what happened first, what happened next, and so on. In archaeology, relative dating relies on stratigraphy—what material is located above or below something else. The Law of Superposition tells us that material positioned underneath something else is usually older and material overlying a deposit is younger than the deposit, unless the layers have been disturbed. The photos that you will be shown depict a collection of items on a table: a cup, saucer, newspaper, and tickets. Imagine that these items are part of a single context such as a layer in an excavation and you want to determine whether they were deposited all at once as a single event or one after the other…arrow_forward
- Changes in the Air To assess the impact of human activity on the carbon dioxide level in Earth's atmosphere, it helps to take a long view. One useful data set comes from deep core samples of Antarctic ice. The oldest ice core that has been fully analyzed dates back a bit more than 400,000 years. Air bubbles trapped in the ice provide information about the gas content in Earth's atmosphere at the time the ice formed. Combining ice core data with more recent direct measurements of atmospheric carbon dioxideas in FIGURE 46.20can help scientists put current changes in the atmospheric carbon dioxide into historical perspective. FIGURE 46.20 Changes in atmospheric carbon dioxide levels (in parts per million). Direct measurements began in 1980. Earlier data are based on ice cores. The industrial revolution occurred around 1800. What was the trend in carbon dioxide level in the 800 years prior to this event? What about in the 175 years after it?arrow_forwardChanges in the Air To assess the impact of human activity on the carbon dioxide level in Earth's atmosphere, it helps to take a long view. One useful data set comes from deep core samples of Antarctic ice. The oldest ice core that has been fully analyzed dates back a bit more than 400,000 years. Air bubbles trapped in the ice provide information about the gas content in Earth's atmosphere at the time the ice formed. Combining ice core data with more recent direct measurements of atmospheric carbon dioxideas in FIGURE 46.20can help scientists put current changes in the atmospheric carbon dioxide into historical perspective. FIGURE 46.20 Changes in atmospheric carbon dioxide levels (in parts per million). Direct measurements began in 1980. Earlier data are based on ice cores. 4. Was the rise in the carbon dioxide level between 1800 and 1975 larger or smaller than the rise between 1980 and 2013?arrow_forwardChoose which word best fits the blank. Large amounts of iridium were found at the K–Pg boundary not only in Denmark and Italy, but in other areas of the globe as well. This suggested that the asteroid was likely large in size and had _______ impact. A. an insignificant B. a catastrophicarrow_forward
- Please answer this ASAP number 17arrow_forward* goformative.com/formatives/608ebb69340c5d3fbd0db7e1 Question Details Atmosphere hydrosphere Draw and label at least 5 more arrows on the diagram to show the movement of carbon between spheres. One is done for you, You must include photosynthesis and cellular respiration as 2 of the arrows. rock formation Draw or add images here Biosphere geosphere dtv T Aa MacBook Air 888 SC DII F4 FS F7 F9 F10 %23 2$ & 1 2 3 4 5 6 7 8 9 delete { [ Q W E R Y } P A S D %3D G J K L reture V N M > ? option command command option Barrow_forwardLarge amounts of oxygen gas first appeared in Earth's atmosphere about ______ years ago. 10 million 2.7 billion 3.5 billion 500,000arrow_forward
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