2. Jean-Baptiste Lamarck's explanation for the evolution of long-necked giraffes from shorter- neckêd okapi-like ancestors on a savanna would include all of the following features except: A. over time, inheritance of acquired characteristics in okapis would lead to savanna giraffes B. once an okapi had acquired a longer neck, it could pass on this new trait to its offspring C. okapis in a savanna habitat found it advantageous to stretch their necks for treetop leaves D. each individual okapi could increase its neck-length by deliberate, consistent exercise E. only those okapis with favorable traits (long necks) could be ancestral to savanna giraffes

2. Jean-Baptiste Lamarck's explanation for the evolution of long-necked giraffes from shorter- neckêd okapi-like ancestors on a savanna would include all of the following features except: A. over time, inheritance of acquired characteristics in okapis would lead to savanna giraffes B. once an okapi had acquired a longer neck, it could pass on this new trait to its offspring C. okapis in a savanna habitat found it advantageous to stretch their necks for treetop leaves D. each individual okapi could increase its neck-length by deliberate, consistent exercise E. only those okapis with favorable traits (long necks) could be ancestral to savanna giraffes

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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Similar questions

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The good genes hypothesis is a theory that explains what? a. why more fit individuals are more likely to have more offspring b. why alleles that confer beneficial traits or behaviors are selected for by natural selection c. why some deleterious mutations are maintained in the population d. why individuals of one sex develop impressive ornamental traits
Which of the following traits is more associated with an Opportunistic (Equilibrial) species? Which of the following traits is more associated with an Opportunistic (Equilibrial) species? A. Short maturation time B. Producing offspring at many different times over the course of life C. Producing a lot of eggs at one time D. High juvenile mortality E. High level of parental care
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Of the following, which is the least plausible hypothesis for why natural selection has not eliminated genes for male homosexuality? a. Perhaps the relatives of a homosexual male have more than an average number of children. b. Homosexual people might spread their genes by helping their brothers and sisters rear their children. c. Maybe there is no gene for homosexuality. Instead, an environmental event produces an epigenetic effect that can be transmitted from one generation to the next. d. Some homosexual men have children.
1. What is the term describing the process that occurs when a species evolves into a new species with a physical barrier separating populations? a adaptive radiation . geographic isolation b. coevolution c. Geographic isolation d. Mutation
Your descendants have fortunately inherited your fascination with rodent genetics. Fifty thousand years after the original volcanic eruption, your descendants return to the island where the two populations are still separated. They repeat the same experiments that you carried out. Their data indicate there is no reproductive isolation between members of A1 and A2. DNA sequences from randomly chosen individuals from the two populations are shown here – A1 ATAAGA A1 ACAAGA A1 ACATGA A2 TCATTT A2 TCATTG A2 TCATTT A)Name one mechanism by which differences between A1 and A2 became fixed in the two populations (not how the differences arose in the first place).
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Which of the following is true regarding vestigial traits? A. Vestigial traits are evidence for change over time B. Vestigial traits are evidence for common ancestry C. Vestigial traits indicate that not evolution does not perfect organisms A and B A, B, and C
Which of the following represents the best examples of homologous structures (i.e. results of shared ancestry)? a. bones in an eagle wing and bones in a lion's front leg O b. sparrow wing and bee wing O c. beetle leg and chicken leg d/eyelessness in the Australian mole and eyelessness in the North American mole
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