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

Both mutation rate and population size influence genetic diversity, but they do so to different degrees. Which of the following is WRONG as a comparison of genetic diversity between two populations? O a. Cheetah population (100 individuals ) > Nycterophilia bat flies that live on them d. Forest owlet (between 70 and 400 individuals) >> Ridgway's hawk (maximum 50 individuals) e. cardinalflower (Northeast and South of North America) >> smooth azalea (only in the Eastern seaboard)
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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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).
What is true about evolution by natural selection? a. It is a largely random process. b. Homology shows that convergence is a useful tool for deducing adaptive function. c. Mothers are invariably members of the same species as their offspring, so selection can never create new species. d. Harmful recessive genes are eliminated more rapidly than harmful dominant genes. e. None of the above is true.
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
3.1
In which of the situations below would speciation be most likely to occur? You can choose more than one answer. a. Seven lemurs escape from an enclosure at Duke University. To everyone's surprise, they establish a small but viable population coexisting successfully with humans in a partly suburban environment very different from their native Madagascan habitat. b. Bighorn sheep occupy mountains from Canada to Death Valley in Southern California, interbreeding all along the way. The populations at the two ends of the range live in very different environments. c. A few individuals of a butterfly species were blown to an island during a severe storm. d. A population of juniper shrubs is split by the formation of a canyon. Every year, strong winds carry a small amount of the shrubs' pollen across the canyon.