Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 15, Problem 1PIT
Summary Introduction
To add:
Life’s history, DNA evidence, Fossil evidence to Pull It Together concept map.
Concept introduction:
Scientists study the history of life in the context of the geologic timescale that divides time into various eons, eras, period and epoch. The Earth formed around 4.6 billion years ago and was very hot at that time. It slowly cooled down to form Earth crust around 4.1 billion years ago. The origin of life became possible only after that. The various events that occurred after the origin of life can be studied through fossil records and molecular data.
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Students have asked these similar questions
1. Understanding geologic time is significant because it helps us
a. Understand humans’ impact on our environment
b. Understand the process of evolution
c. Understand the possibility for life on other planets
d. Understand the evolution of organisms over time
6. Describe one major event in Earth’s natural history. The event can be an evolutionary innovation or an environmental event. How did this event change life on earth?
Explain The Core Theme: Evolution accountsfor the unity and diversity of life
Chapter 15 Solutions
Biology: Concepts and Investigations
Ch. 15.1 - How were conditions on Earth before life began...Ch. 15.1 - Prob. 2MCCh. 15.1 - Prob. 3MCCh. 15.1 - Prob. 4MCCh. 15.2 - How might the endoplasmic reticulum, nuclear...Ch. 15.2 - Prob. 2MCCh. 15.2 - Prob. 3MCCh. 15.3 - Prob. 1MCCh. 15.3 - What types of organisms flourished in the...Ch. 15.3 - How did Palaeozoic life diversify during the...
Ch. 15.3 - Prob. 4MCCh. 15.3 - Prob. 5MCCh. 15.3 - Prob. 6MCCh. 15.4 - Prob. 1MCCh. 15.4 - Prob. 2MCCh. 15.4 - Prob. 3MCCh. 15.4 - Prob. 4MCCh. 15.5 - Prob. 1MCCh. 15.5 - Prob. 2MCCh. 15 - Place the following events in Earths history in...Ch. 15 - Prob. 2MCQCh. 15 - Photosynthetic cells affected early Earth by a....Ch. 15 - Prob. 4MCQCh. 15 - Prob. 5MCQCh. 15 - Prob. 6MCQCh. 15 - Why was the Mesozoic era extinction significant to...Ch. 15 - Primates share all of the following...Ch. 15 - Prob. 9MCQCh. 15 - DNA evidence suggests that modern humans a. share...Ch. 15 - Explain how the origin of self-replicating...Ch. 15 - Prob. 2WIOCh. 15 - Review the structures of nucleic acids and...Ch. 15 - Prob. 4WIOCh. 15 - The amoeba Pelomyxa palustris is a single-celled...Ch. 15 - Prob. 6WIOCh. 15 - Distinguish among the terms primate, hominid,...Ch. 15 - Prob. 8WIOCh. 15 - Prob. 9WIOCh. 15 - Compare todays changing culture to biological...Ch. 15 - Prob. 11WIOCh. 15 - Prob. 1PITCh. 15 - Refer to figure 15.31 and the chapter content to...Ch. 15 - Refer to figure 15.31 and the chapter content to...
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- 1. Write a micro-theme using and explaining the following terms. a. “Survived of the fittest” b. Adaption c. Evolutionarrow_forward9. Which statement best describes the relationship between the theory of evolution and the origin of life? O The theory cannot explain the origin of life. O The theory does not try to explain the origin of life. O The theory does not contribute understanding to pre-life processes. O The theory includes an explanation of life's origins. O 0.63 and 0.37 O 0.37 and 0.63 10. Which of the following would best determine whether two plant species share a recent common ancestor? O DNA sequences O Stem lengths O Flowering times O Habitat distribution 11. What is genetic variance? O The magnification of genetic drift as a result of natural events or catastrophes O The diversity of alleles and genotypes within a population O The change in a population's genetic structure O The effect of chance on a population's gene pool 12. How does an adaptation, such as better running speed, relate to natural selection? O Natural selection randomly mutates individuals' genetic code until it produces beneficial…arrow_forwardOutline 2 limitations of using fossil evidence as the only argument in favour of the theory of evolution by natural selection.arrow_forward
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- WRITE ABOUT A THEME: Organization You have seenmany examples of how form fits function at all levels of thebiological hierarchy. However, we can imagine forms thatwould function better than some forms actually found innature. For example, if the wings of a bird were not formedfrom its forelimbs, such a hypothetical bird could fly yet alsohold objects with its forelimbs. In a short essay (100–150words), use the concept of “evolution as tinkering” to explainwhy there are limits to the functionality of forms in nature.arrow_forwardThe idea of the great chain of being, or scala naturae suggests that O a. all non-living and living things on earth can be arranged naturally on a branching tree O b. the earth is very young, and newly created c. new life forms appear periodicly through a process of spontaneous generation O d. all life forms can be arrayed along a linear progression of increasing reasoning ability O e. the natural world is made up of a set of unchanging essences that are discretely different from one anotherarrow_forwardWhy is the study of biogeography an important tool in explaining how species have evolved? * It shows us the relationship between a species' environment, and how they have evolved It shows us how the DNA has changed from one generation to the next It shows us how the bone structure of organisms has changed over time It shows us how old the Earth is Sign out US Lenovo ce %23 24 4. 5 7 08 9. backspace %D tab e y a d f g. k C V. alt alt ctrlarrow_forward
- 1. Describe how ecology affects evolution. Provide an example in which the ecological interaction between two species leads to evolutionary change in one or both speciesarrow_forwardWhat is the difference between micro- and macroevolution? Microevolution describes the evolution of small organisms, such as insects, while macroevolution describes the evolution of large organisms, like people and elephants Microevolution describes the evolution of microscopic entities, such as molecules and proteins, while macroevolution describes the evolution of whole organisms Microevolution describes the evolution of organisms in populations, while macroevolution describes the evolution of species over long periods of time Microevolution describes the evolution of organisms over their lifetimes, while macroevolution describes the evolution of organisms over multiple generations.arrow_forward17. Which of the following has provided an abundance of evidence that the diversity of life on Earth has changed over time? a. population genetics b. the fossil record C. natural selection d. Cell theory te Education TM Inc. -> Cc %24 Li %23arrow_forward
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