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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- Which 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_forwardIn 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_forward
- Four 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_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_forwardWhich mechanism of fossil formation created a replica of an organism's original form? a natural cast b amber-preserved c permineralization d trace fossilarrow_forward
- What kind of fossils were formed out of dinosaur remains and activities? Why do you say so? (Give three)arrow_forwardWhat factors are necessary for fossils to occur? I. Abundant MembersII. Exist for a long timeIII. Have many body parts A) I and II. B) I and III C) All of the above.arrow_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_forward
- Choose the best below ? Which of these steps probably occurred first in the chemical andbiological evolution of life? a. The cell membrane of a protobiont formed.b. Formation of the first organic moleculesc. The genetic material was RNA.d. Simple organic monomers formed from inorganic materials.arrow_forwardThere was a large proliferation of fossils showing increase in diversity of life.What period is this?arrow_forwardWhat is the term for bits of rock and dirt? O A. Mesozoic O B. Half-life O c. Sediment O D. Radiometricarrow_forward
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