Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
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Textbook Question
Chapter 16, Problem 2SQ
Evolution ________.
- a. is change in a line of descent
- b. is the same as natural selection
- c. is the goal of natural selection
- d. explains the origin or life
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which of these is not a central rule of natural selection
a, fitness to the general health and strength of an organism
b, natural selection can only act on traits that affect reproduction
c, natural selection can't occur without population variation
d, a trait must be inherited if natural selection is to act on it
Evolution that results because certain genotypes have a higher reproductive success is based on
a. genetic variation. c. genetic drift.
b. natural selection. d. both a and b.
Why are humans so genetically similar within our species?
A.
Because humans evolved in multiple locations around the world at different times.
B.
Because humans evolved in one location (Africa) and we have existed as a species for very long time.
C.
Because humans evolved in one location (Africa) and we haven't existed as a species for very long.
D.
Humans are not very genetically similar to one another.
Chapter 16 Solutions
Biology: The Unity and Diversity of Life (MindTap Course List)
Ch. 16 - Discovery of Iridium in the KPg Boundary Layer In...Ch. 16 - Discovery of Iridium in the KPg Boundary Layer In...Ch. 16 - The number of species on an island depends on the...Ch. 16 - Evolution ________. a. is change in a line of...Ch. 16 - The process in which environmental pressures...Ch. 16 - The dinosaurs died out ______ million years ago.Ch. 16 - The bones of a birds wing are similar to the bones...Ch. 16 - A trait is adaptive if it ______. a. arises by...Ch. 16 - Darwin and Wallace proposed the hypothesis that...Ch. 16 - Prob. 8SQ
Ch. 16 - Which of the following is not a fossil? a....Ch. 16 - Prob. 10SQCh. 16 - If the half-life of a radioisotope is 20,000...Ch. 16 - Prob. 12SQCh. 16 - On the geologic time scale, life originated in the...Ch. 16 - Forces that cause geologic change include _____...Ch. 16 - Match the terms with the most suitable...Ch. 16 - Natural selection makes an adaptive trait more...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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- Why are alternative scientific theories to evolution not taught in public school? a. more theories would confuse students b. there are no viable scientific alternatives c. it is against the law d. alternative scientific theories are suppressed by the science establishmentarrow_forwardMutation (a) leads to adaptive evolutionary change (b) adds to the genetic variation of a population (c) is the result of genetic drift (d) almost always benefits the organism (e) a and barrow_forwardCharles Darwin proposed that evolution could be explained by the differential reproductive success of organisms that resulted from their naturally occurring variation. Darwin called this process (a) coevolution (b) convergent evolution (c) natural selection (d) artificial selection (e) homoplasyarrow_forward
- Evolution is the accumulation of genetic changes within _______________ over time. (a) individuals (b) populations (c) communities (d) a and b (e) a and carrow_forwardEvolution results from A. mutations. B. natural selection. C. genetic drift. D. gene flow. E. All of the choices are correct.arrow_forwardWhy is evolution considered a scientific theory? A. It is controversial B. There is not much edvidence to back it up C. Scientists are not really sure if evolution is still occuring today d. There is Lots of data to support evolution and no evidence that it does not occur e. it is not possible to really test whether evolution happensarrow_forward
- Unlike natural selection, is not related to an individual’s ability to survive and may result in offspring that are less well adapted to survive in a particular environment. (a) genetic drift (b) sexual selection (c) directional selection (d) convergent evolutionarrow_forwardWith regard to biological evolution, which of the following statements is incorrect? Explain why.A. During its lifetime, an animal evolves to become better adaptedto its environment.B. The process of biological evolution has produced species thatare better adapted to their environments.C. When an animal is better adapted to its environment, the process of natural selection makes it more likely that the animalwill reproduce.arrow_forwardWhy is evolution considered to be a scientific theory ? A) it’s ideas are supported by facts and inference B) it is not true C) it is not accepted by the scientific community D) it cannot be testedarrow_forward
- Darwin emphasized that evolution via natural selection leads only to a) progress as defined by increasing heterogeneity. b) higher and lower forms within the same species of organism. c) the establishment of some societies that are more civilized than others. d) increasing adaptation between organisms and their given environment.arrow_forwardWhat does the term evolution mean? A. The characteristics of species become more complex over time. B. The strongest individuals produce the most offspring. C. The characteristics of an individual change through the course of its life, in response to natural selection. D. The characteristics of populations change through time.arrow_forwardNatural selection works on a. individuals. b. genes. c. populations. d. species. harrow_forward
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The Evolution of Populations: Natural Selection, Genetic Drift, and Gene Flow; Author: Professor Dave Explains;https://www.youtube.com/watch?v=SRWXEMlI0_U;License: Standard YouTube License, CC-BY
The Evolution of Humans | Evolution | Biology | FuseSchool; Author: FuseSchool - Global Education;https://www.youtube.com/watch?v=Vf_dDp7drFg;License: Standard YouTube License, CC-BY