21ST C ASTRO EBOOK+SW5=SS+VGCRD+LEARN/DO
6th Edition
ISBN: 9780393870152
Author: PALEN
Publisher: Norton, W. W. & Company, Inc.
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Chapter 24, Problem 5QP
To determine
Reasons that terrestrial life may originated from Earth’s oceans, rather than from land.
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d. all) of these
7. The development of ozóne in the stratosphere and oxygen in the atmosphere first
made possible the development of
a. complex organisms
b. single-cell organisms
c. cyanobacteria
d. all of these
8. Today, many scientists think that
a. 'birds evolved from dinosaurs
b. dinosaurs evolved from reptiles
c. birds evolved from amphibians
d. both a andb
9. Ediacaran organisms first appeared during the
a. Precambrian Time
b. Cambrian Period
c. Permian Period
d. none of these
10. As
a. cyanobacteria
b. trilobites
evolved, they changed Earth's atmosphere by producing oxygen.
c. reptiles
d. dinosaurs
Geologic Time
What describes using organisms that were only alive during a specific time period to estimate the unknown age of items?
a.
Radioactive dating
Selected:b.
Law of superposition
This answer is incorrect.
c.
Relative dating
d.
Index fossils
H.W: How many nanocubes can you get if you break the cube with 1 m on each side
into 1 nm length? What is the collective surface area of the nanocubes? Answer:
(No. = 1027, Total SA = 6 x 10° m2 = 6000 km?)
Chapter 24 Solutions
21ST C ASTRO EBOOK+SW5=SS+VGCRD+LEARN/DO
Ch. 24.1 - Prob. 24.1CYUCh. 24.2 - Prob. 24.2CYUCh. 24.3 - Prob. 24.3ACYUCh. 24.3 - Prob. 24.3BCYUCh. 24.4 - Prob. 24.4CYUCh. 24 - Prob. 1QPCh. 24 - Prob. 2QPCh. 24 - Prob. 3QPCh. 24 - Prob. 4QPCh. 24 - Prob. 5QP
Ch. 24 - Prob. 6QPCh. 24 - Prob. 7QPCh. 24 - Prob. 8QPCh. 24 - Prob. 9QPCh. 24 - Prob. 10QPCh. 24 - Prob. 11QPCh. 24 - Prob. 12QPCh. 24 - Prob. 13QPCh. 24 - Prob. 14QPCh. 24 - Prob. 15QPCh. 24 - Prob. 16QPCh. 24 - Prob. 17QPCh. 24 - Prob. 18QPCh. 24 - Prob. 20QPCh. 24 - Prob. 21QPCh. 24 - Prob. 22QPCh. 24 - Prob. 23QPCh. 24 - Prob. 24QPCh. 24 - Prob. 25QPCh. 24 - Prob. 26QPCh. 24 - Prob. 27QPCh. 24 - Prob. 29QPCh. 24 - Prob. 30QP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- Why do scientists generality think that liquid water is necessary for the origin of life?arrow_forward1. The article states that Tasmanian devils “remov[e] carcasses that might otherwise slowly rot." Which of the following ScienceWorld Name: CHECK FOR UNDERSTANDING: RETURN OF THE DEVINS DIRECTIONS: Use the article "Return of the Devils" (p. 20) to answer the questions hello phrases best defines carcasses? A decaying plants B fallen trees bodies of dead animals O nonnative predators d the dramatic decline of the devil population on the island of Tasmania in the past feN darrow_forwardA single human cell encloses about 1.5 m of DNA, containing 4.5 billion base pairs. What is the spacing between these base pairs in nanometers? That is, how far apart are the rungs on the DNA ladder?arrow_forward
- What would happen to a life-form if the information handed down to offspring was always the same? How would that endanger the future of the life-form?arrow_forwardWhat would happen to a life-form if the genetic information handed down to offspring was copied extremely inaccurately? How would that endanger the future of the life-form?arrow_forward1.) Gases in the atmosphere keep the temperature in a range to support life on earth. 2.) There is an exact place where the atmosphere ends.arrow_forward
- QUESTIONS 1. a) The earth's inner core is just a few hundreds of degrees less than the temperature of the Sun: about 5200 degrees Celsius versus about 6000 Degrees Celsius. With that much heat in the centre of the earth, why is it still possible for life to exist on the surface of the earth? b) How is the heat in the earth's centre able to melt the outer core but not the inner core? 2). a). Describe the Goldsmith Classification of element. b). Describe how Goldsmith rules are used to classify Elements. c). Describe how the bonding types and magma differentiation aids in the distribution of trace elements in the Eartharrow_forward16) Peter Singer claims that we should accept speciesism only as long as it involves the defense of human rights. a. True b. False 17) Which of the following would be an example of a "big" or "timeless" question? a. Do humans have free will? b. Is there a God? c. Do humans have souls? d. All of these e. None of these 18) Philosophy is best defined as the love of a. numbers b. donuts c. wisdom d. music e. None of these 19) Conceptual analysis is a task/function of philosophy. a. True b. False 20) Philosophers tend to reject big picture perspectives. a. True b. Falsearrow_forwardApproximately how old is a fossil that contains 1.5g of C14 and 198.5g of C12? Remember that C14 decays to C12 with a half life of 6,000 years.arrow_forward
- 44.What term is associated with Donald T.Campbell's concept of evolutionary epistemology? A.Environmental determinism. B.Knowledge acquisition. C.Selection pressures. D.Social cognition.arrow_forward5. Scientists always develop a plan when they try to learn something about our natural world. Which sequence correctly shows the steps scientists follow in their plan? A. make observations, develop an idea, obtain evidence, suggest an explanation B. obtain evidence, suggest an explanation, develop an idea, make observations C. suggest an explanation, obtain evidence, make observations, develop an idea D. develop an idea, suggest an explanation, obtain evidence, make observations Explanation:arrow_forwardWhich of the following seems least reasonable regarding life on Earth? Group of answer choices There is much scientific evidence suggesting that all creatures living on Earth today appear to have evolved from a common ancestor. Louis Pasteur discredited the concept of spontaneous generation by demonstrating that even bacteria and other microorganisms arise from parents resembling themselves. There is ample physical evidence that the earliest life forms on Earth were multicellular creatures, perhaps resembling some of our primitive fish. When the earth formed some 4.6 billion years ago, it was a lifeless, inhospitable place. Before the mid-17th century, most people believed that God had created humankind and other higher organisms and that insects, frogs, and other small creatures could arise spontaneously in mud or decaying matter About billion years into its development, the Earth it was teeming with organisms resembling blue-green algae.arrow_forward
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