BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 17, Problem 4SA
Summary Introduction
Introduction:
Sexual selection is one of the cases of natural selection that is seen in sexually reproducing organisms where an organism is capable of choosing a partner (of the opposite sex) with whom it can go for mating and produce offsprings.
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Sexual selection frequently influences aspects of body form and can lead to_____ . a. a sexual dimorphism c. exaggerated traits b. male aggression d. all of the above
How does sexual selection differ from natural selection?
a. It does not require heritable traits.
b. It determines which individuals get to mate.
c. Variation is not required.
d. It only involves males.
Dog breeders use selective breeding, also called artificial selection, to maintain a closed genetic lineage, and produce offspring with desirable traits. This violates which Hardy-Weinberg condition?
a
reproduction
b
no mutation
c
random mating
d
no natural selection
Chapter 17 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 17 - _________is the original source of new alleles. a....Ch. 17 - Prob. 2SACh. 17 - Match the modes of natural selection with their...Ch. 17 - Prob. 4SACh. 17 - The persistence of the sickle allele at high...Ch. 17 - Prob. 6SACh. 17 - Prob. 7SACh. 17 - Which of the following is not part of how we...Ch. 17 - Prob. 9SACh. 17 - Prob. 10SA
Ch. 17 - Prob. 11SACh. 17 - Prob. 12SACh. 17 - In evolutionary trees, each node represents an...Ch. 17 - Match the evolutionary concepts. ____gene flow a....Ch. 17 - The evolution of wings helped the insect clade to...Ch. 17 - Species have traditionally been characterized as...Ch. 17 - Rama the cama, a llama-camel hybrid, was born in...Ch. 17 - Two species of antelope, one from Africa, the...Ch. 17 - Prob. 4CT
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- Darwin based his Theory of Evolution by Natural Selection on series of observations. Which of the following is not associated with his theory? a) individuals in a population vary phenotypically b) organisms tend to under-reproduce themselves c) there are limited resources for which individuals compete d) some variations possessed by individuals of a population are inheritedarrow_forwardwhich 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 itarrow_forwardThe fantastic coloration and behavioral displays in the birds of paradise that we watched in class were examples of differential sexual selection driven by: a. Female-female combat b. Male competition c. Female choice d. Intrasexual selectionarrow_forward
- Which of the following situations will lead to natural selection? a. The seeds of two plants land near each other and one grows larger than the other. b. Two types of fish eat the same kind of food, and one is better able to gather food than the other. c. Male lions compete for the right to mate with females, with only one possible winner. d. all of the abovearrow_forwardThat African infants tend to walk earlier than Western infants suggests that walking: a. that race determines the earliest age of walking. b. is a completely adaptive behaviour to the particular environment in which the infant is raised. c. is not completely controlled by genetics. d. follows a proximodistal progression.arrow_forwardWhich of the following is not required for a behavioral trait toevolve by natural selection?(A) In each individual, the form of the behavior is determinedentirely by genes.(B) The behavior varies among individuals.(C) An individual’s reproductive success depends in part onhow the behavior is performed.(D) Some component of the behavior is genetically inherited.arrow_forward
- 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.arrow_forwardA set of beliefs and practives that involves the controlled selective breeding of human populations with the hope of improving their heritable qualities, especially through surgical procedures like sterilization and legal rulling that affect marriage rights for interracial couples, is known as: A) non-concordance B) biological determinism C) eugenics D) natural selectionarrow_forwardWhich of the following individuals would be considered to have the greatest evolutionary fitness? a. Olympic speed skater with one child b. an overweight person with three children c. a woman who had six children, none of whom (the children) survived to adulthood d. a single mom who adopted eight childrenarrow_forward
- Descent with modification results in individuals who: A. are the strongest. B. are the smartest. C. have the greatest ability to succeed in life. D. have the greatest ability to survive and reproduce.arrow_forwardInbreeding is sexual reproduction between individuals that are a. homozygous. b. heterozygous. c. part of the same genetic lineage. d. both a and c.arrow_forwardUnlike 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_forward
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