Answered: 1. Animals that possess homologous…

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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Question

1. Animals that possess homologous characteristics

Group of answer choices

a. by chance had the same mutations in the past

b. share a common ancestor that also had the characteristic

c. are less related than if the characteristics were homoplastic

d. evolved the characteristics independently

e. are not related

2. In a population of Scrub Jays, the frequency of a recessive allele that results in short tail feathers in homozygous individuals is 0.5. When you survey the population for tail phenotypes, you find that 70 percent of adult scrub jays have short tail feathers. What is most likely true based on these numbers?

Group of answer choices

a.Short tail feathers appear to be neither helpful nor harmful in this population

b.The population is Hardy-Weinberg equilibrium for this trait

c. The short tail feathers are likely maladaptive and are allowing predators

to capture the scrub-jays

d. Having short tail feathers in this population is in some way beneficial

e. Longer tail feathers are favored by females in this population

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