Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 23, Problem 13TYK
Summary Introduction
To review:
Extinctions are common in the history of life. Biologists are alarmed by the current wave of extinctions caused by human activity.
Introduction:
Human activities, like excessive land usage, pollution (soil pollution, air pollution, water pollution), deforestation, urbanization, and habitat destruction, all are potent causes of the extinction of many species.
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Chapter 23 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 23.1 - What biological materials are the most likely to...Ch. 23.1 - Prob. 2SBCh. 23.1 - Prob. 3SBCh. 23.2 - Prob. 1SBCh. 23.2 - Prob. 2SBCh. 23.3 - Which type of geographical distribution requires...Ch. 23.3 - Why do distantly related species that live in...Ch. 23.4 - What factors might allow a population of organisms...Ch. 23.4 - What events apparently triggered the mass...Ch. 23.4 - Prob. 3SB
Ch. 23.5 - Prob. 1SBCh. 23.5 - Prob. 2SBCh. 23.6 - Prob. 1SBCh. 23.6 - Prob. 2SBCh. 23.6 - Prob. 3SBCh. 23 - The fossil record: a. provides direct and indirect...Ch. 23 - The absolute age of a geological stratum is...Ch. 23 - Prob. 3TYKCh. 23 - Prob. 4TYKCh. 23 - Biologists believe that the overall similarities...Ch. 23 - The differential growth of body parts is called:...Ch. 23 - Exaptations are traits that: a. prepare some...Ch. 23 - Adaptive radiations often follow mass extinctions...Ch. 23 - Prob. 9TYKCh. 23 - Prob. 10TYKCh. 23 - Prob. 11TYKCh. 23 - Prob. 12TYKCh. 23 - Prob. 13TYKCh. 23 - Prob. 14TYKCh. 23 - Prob. 15TYKCh. 23 - Prob. 1ITD
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- What is the difference between micro- and macroevolution? a. Microevolution describes the evolution of small organisms, such as insects, while macroevolution describes the evolution of large organisms, like people and elephants. b. Microevolution describes the evolution of microscopic entities, such as molecules and proteins, while macroevolution describes the evolution of whole organisms. c. Microevolution describes the evolution of populations, while macroevolution describes the emergence of new species over long periods of time. d. Microevolution describes the evolution of organisms over their lifetimes, while macroevolution describes the evolution of organisms over multiple generations.arrow_forwardEvolution is based on which of the following concepts? (a) organisms share a common origin (b) over time, organisms have diverged from a common ancestor (c) an animals body parts can change over its lifetime, and these acquired changes are passed to the next generation (d) a and b (e) a, b, and carrow_forwardIn evolutionary trees, each node represents an __________. a. single lineage c. divergence b. extinction d. adaptive radiation.arrow_forward
- which statement about macroevolution is true? a. The history of life on Earth follows a general trend toward increasing diversity marked by rare mass extinction events. b. The theory of punctuated equilibrium proposes that most evolutionary changes occur over long periods of time. c. The theory of gradualism proposes that major evolutionary changes happen relatively rapidly and are then followed by long periods of little change. d. All scientific understandings are complete, as scientific investigations have now filled in all remaining gaps.arrow_forwardExplain how evolution occurs after a mass extinction. Give a step-by-step process (use bullet points and underline key words you know I am looking for).arrow_forwardThe fossil record shows that in just the last 600 million years, there have been five instances of sharp decreases in the diversity and abundance of living organisms. what are these events? a. droughts b. mass extinctions c. reversals of the earth's magnetic field d. great migrationarrow_forward
- The _________________ model proposes that modern humans are the most recent morphological form in a species that has been around for nearly 2 million years. a. Multiregional Evolution (MRE) b. Multiple Dispersal (MD) c. Recent African Origin (RAO) d. Recent African Origin-HYbrid(RAO-H)arrow_forward'The origin of life is a co‐evolutionary process.' Briefly explain.arrow_forwardEvolutionary Thought: answer the question in essay form. Explain the benefits, effects, and contributions of the Five Agents of Evolutionary Changearrow_forward
- explain why biologists fear that a mass extinction is occurring as a result of human activities?arrow_forwardDistinguish between biological extinction and mass extinction. Does every species have the right to survive without human interference, regardless of whether they serve a useful purpose to humans? Explain?arrow_forwardScientists are examining the possible role of a large asteroid in the cretaceous mass extinction event. A large asteroid strike would likely have caused rapid climate cooling and the diffusion of sunlight. which of the following statements are the best null and alternative hypotheses when scientists look at the geologic evidence of extinction related to the asteroid strike?arrow_forward
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