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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Textbook Question
Chapter 16, Problem 6SQ
Which of the following is a fossil?
- a. an insect encased in 10-millon-year-old tree sap
- b. a woolly mammoth frozen in Arctic permafrost for the last 50,000 years
- c. mineral-hardened remains of a whalelike animal found in an Egyptian desert
- d. an impression of a plant leaf in a rock
- e. all of the above can be considered fossils
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Chapter 16 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 16 - The number of species on an island depends on the...Ch. 16 - Prob. 2SQCh. 16 - Prob. 3SQCh. 16 - A trait is adaptive if it ______. a. arises by...Ch. 16 - Prob. 5SQCh. 16 - Discovery of Iridium in the K-Pg Boundary Sequence...Ch. 16 - Prob. 2DAACh. 16 - Which of the following is a fossil? a. an insect...Ch. 16 - If the half-life of a radioisotope is 20,000...Ch. 16 - Prob. 8SQ
Ch. 16 - The dinosaurs died out ______ million years ago.Ch. 16 - On the geologic time scale, life originated in the...Ch. 16 - Prob. 11SQCh. 16 - Forces that cause geologic change include ___...Ch. 16 - Radiometric dating does not measure the age of an...Ch. 16 - If you think of geologic time spans as minutes,...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Which of the following is an accurate point that supports the idea that the earliest protocells relied first on RNA (not DNA) as inherited information? A. RNA is composed of lipids, and lipids were present on early Earth before the nucleotides that compose DNA were B. RNA is a monomer (unlike DNA), so it is simpler and more likely to have been used by these simple protocells C. DNA would have been too large to fit into the small protocells, but RNA was small enough to fit D. RNA can serve dual roles as both genetic information storage and an enzyme (but DNA cannot do both) ..arrow_forwardMartian meteorites found in Antarctica were determined to possibly contain life. Scientists looked skeptically at these meteorites because a. their results suggest unusual chemical signatures that do not indicate life. b. features thought to be Martian fossils could be nonbiochemical formations. c. it is impossible for a piece of the Martian surface to fall to Earth. d. both a and b are true.arrow_forwardWhich of the following statements about the fossil record is true? a. The fossil record is a complete accounting of life on earth b. The fossil record is unbiased in the fossils that are found c. The fossil record is evenly sampled across all of life's history on earth d. There are certain biases in the fossil recordarrow_forward
- In which type of rock are you more likely to find a fossil? a. basalt, a dark, fine-grained volcanic rock b. limestone, composed of calcium carbonate sediments c. slate, a volcanic melted and cooled shale d. granite, which forms by crystallization of molten rock below the surface of the Eartharrow_forwardThe fossil record (a) usually occurs in sedimentary rock (b) sometimes appears fragmentary (c) is relatively complete for tropical rainforest organisms but incomplete for aquatic organisms (d) a and b (e) a, b, and carrow_forwardFour of the following statements about fossils found on the island of Flores are true. Which one is the exception? O a. They have a heavy brow ridge. O b. They have been described to be like "hobbits." OC. They have very small brains. d. They are shorter than modern humans. O e. They are 200,000 years old.arrow_forward
- Why can’t scientists just do DNA analysis on these fossil hominins to determine if they are a separate species and possibly what species they belong to? A. The DNA of fossil hominins is too similar to modern humans, making it difficult to distinguish between them. B. The technology for extracting DNA from fossils hasn't been developed yet. C. The fossils would need to be in a -5 degree Celsius environment to prevent DNA from degrading D. Scientists can't perform DNA analysis on fossil hominins because the fossils have been contaminated with modern human DNA over the years, making it impossible to isolate the ancient genetic material.arrow_forwardAccording to "Life and Death 3MYA", what are the Laetoli footprints? A.Fossilized footprints of Neanderthals walking across the landscape thousands of years ago B.Fossilized footprints and handprints of Australopithecines walking on all fours across the landscape millions of years ago C.Fossilized footprints of Ardi walking across the landscape millions of years ago D.Fossilized footprints of Australopithecines walking across the landscape millions of years agoarrow_forwardWhat kind of fossils were formed out of dinosaur remains and activities? Why do you say so? (Give three)arrow_forward
- What are the Laetoli footprints? A. Fossilized footprints of Ardi walking across the landscape millions of years ago B. Fossilized footprints of Neanderthals walking across the landscape thousands of years ago C. Fossilized footprints and handprints of Australopithecines walking on all fours across the landscape millions of years ago D. Fossilized footprints of Australopithecines walking across the landscape millions of years agoarrow_forwardWhich of the following is a prediction that evolution makes about the fossil record? Group of answer choices A. fossils of all time periods should be completely different from modern organisms B. most recent fossils should be most similar to modern life C. cats should appear in all fossil layers as rulers of the earth D. oldest fossils should be most similar to modern lifearrow_forwardThe similarities between the bone structure of a human hand and a cats paw suggest what? a. a common evolutionary ancestor b. Humans are actually kitty cats c. nothing d. similar biological functionarrow_forward
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