Biology: The Dynamic Science
4th Edition
ISBN: 9781337246422
Author: Peter J. Russell; Paul E. Hertz; Beverly McMillan
Publisher: Cengage Learning US
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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
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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- Distinguish 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_forwardYou are examining the fossil record and notice a dramatic decrease in species diversity that seems to span across multiple groups of organisms within a very short period of time. This could most likely indicate: The beginning of a new geologic period A mass extinction event A major evolutionary breakthrough An artifact of poor fossil preservation adaptive radiationarrow_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 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? Null: The rate of extinction would be steady over the entire length of time the climate was altered. Alternative: The rate of extinction would be greatest immediately before the asteroid strike. Null: The rate of extinction would gradually decrease over the entire length of time the climate was altered. Alternative: The rate of extinction would be at its lowest immediately after the asteroid strike. Null: The rate of extinction would be steady over the entire length of time the climate was altered. Alternative: The rate of extinction would be greatest immediately after the asteroid strike. Null: The rate of…arrow_forward
- Below are some key events that took place during the long history of life on Earth. Arrange them in the correct sequence: First land plants (kingdom Plantae) First eukaryotic life (domain Eukarya) Adaptive radiation of mammals (class Mammalia) Evolution of chloroplasts Cambrian explosion First aerobic organisms (those that utilize cellular respiration) First land vertebrates (tetrapods) First multicellular organisms First living cellsarrow_forwardWhich of the following statements about extinction is not correct? (a) extinction is the permanent loss of a species (b) extinction is a natural biological process (c) once a species is extinct, it never reappears (d) human activities have little impact on extinctions (e) thousands of plant and animal species are currently threatened with extinctionarrow_forwardWhich of the following is believed to be common among all mass extinction events? the type of event that causes the extinction the number of species that went extinct a significant change in the global climate the type of species that went extinctarrow_forward
- explain why biologists fear that a mass extinction is occurring as a result of human activities?arrow_forwardDefine extinctionarrow_forwardFind the flaws within the sentance/s Extinction is the complete disappearance of a species from Earth. A mass extinction is when more than half of all extant species disappear from the fossil record and there have been at least five of them. In order to prevent the extinction current species, some areas of earth are preserved while others are conserved. Conservation seeks to prohibit human activity in an area. Preservation seeks the sustainable use and management of natural resources. An endemic species is only found in one location. A biodiversity hotspot has over 1500 species of endemic insects and 70% of the area has been disturbed. There are 34 biodiversity hotspots on Earth. Many sustainable practices are used in agriculture. Crop rotation is the practice of growing different kinds of crops in the same area in sequenced seasons. Conservation tillage is any method of soil cultivation that completely tills under the soil to prepare for the next crop. Genetically modified crops are…arrow_forward
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