1. The nonfunctional pelvis and hind limbs found in some snakes support which statement about evolution? Selection pressures promoting snake evolution ceased before snake anatomy was well adapted. Snakes began to evolve these structures, but selection pressures did not favor them. Snakes evolved from the same common ancestor as species in which these structures are functional. Mutations tend to make species evolve to resemble other species in their environment.

1. The nonfunctional pelvis and hind limbs found in some snakes support which statement about evolution? Selection pressures promoting snake evolution ceased before snake anatomy was well adapted. Snakes began to evolve these structures, but selection pressures did not favor them. Snakes evolved from the same common ancestor as species in which these structures are functional. Mutations tend to make species evolve to resemble other species in their environment.

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter23: Paleobiology And Macroevolution

Section: Chapter Questions

Problem 7TYK: Exaptations are traits that: a. prepare some organisms for future environmental changes. b. appear...

See similar textbooks

Similar questions

1. If you are an evolutionary biologist; what definite characteristic will show a relatedness of two organisms? A. Similarity development C. Similarity structure B. Similarity courting behavior D. Similarity in genomic DNA 2.Vestigial structure is one of the anatomical evidences of evolution. Which of the following is NOT a vestigial structure? A. Hind legs of snakes C. Elbow joints of penguin B. Pelvic bone of whales D. Platypus fur 3. Based on scientific findings, which of the following statements is true? A. Very few living things can create complex organic molecules out of carbon and other common elements B. Only microscopic organisms begin their lives as single cell C. Genes are segments of DNA molecules D. All living things get the energy that they need for growth, repair and reproduction from sunlight. 4.What did biologists have discovered about evolution? A. Animals obtain their specific characteristics by obtaining genes from the…
6. Which of the following is not used as evidence of evolution? a. Biogeography b. DNA Sequences c. Folktales d. FOSSIL RECORDS 8. Which of the following is are analogous structures? a. The leg of a dog and flipper of a dolphin b. The limbs of humans and apes c. The wings of bats and butterfly d. The tales of mice and rats 9. Which of the following is true about vestigial structure or trait? a. These structures are highly developed especially for modern species b. It has an important function in both more highly evolved and more ancestral organisms c. It last not have a necessary function in more highly evolved organisms but it did in more ancestral organism d. It did not have a necessary function and more ancestral organism but it does in more highly evolved organisms 10. What do the structural similarities between the flippers of wheels in the arms of human suggest a. Humans and wheels have common ancestor b. The human species began life in the ocean c. Wheels are older than…
1. Process of adaptation is one of the keys toward survival of species. Which of the following is NOT an example of adaptation? A. Dying out of dinosaurs during cretaceous period. B. Certain group of birds eating different kinds of food. C. The finches of Galapagos with different beaks. D. A child learning to walk on his own. 2. Why do organisms with close biochemical similarities show stronger evolutionary relationships? A. They have varied and different ancestry B. They have similar patterns during early stages of development C. They have common ancestor and have the same kind of proteins D. They possess same vestigial structure that made their evolutionary relationship closer. 3. Where do most fossils be found? A. Sedimentary rocks C. Lava flow B. Granite rocks D. Black soil 4. What is the best statement to supports the idea that extinction is necessary? A. To give way for organisms to develop B. To let other organisms evolve and progress…
11. It is the type of evolution when species shares a common ancestor but live in different places. a.) Convergent Evolution b.) Divergent Evolution c.) Parallel Evolution d.) Vertical Evolution 12. Which Statements explains the effect of environmental changes in the evolution of long neck giraffe? a.) early giraffe naturally have long neck b.) Because of the need to survive they kept stretching their necks until these became longer and able to reach taller trees. c.) all short neck giraffe died because of food shortage d.) when long and short neck giraffe were crossed,only the long traits are passed on to the offspring 13. Which homologous structure is incorrect? a.) Bat Wing: Butterfly Wing b.) Human Arm: Whale Flipper c.) Human Arm: Alligator Forelimb d.) Bird Wing: Alligator Forelimb 14. Front limbs of man, cat horse, bat, whales, and other mammals are made up of same kind of bones. In what ways are they different? a.) Development b.) Structure c.) Parts d.) Size and…
1 - Consider natural selection and biocultural evolution. Why do you think anatomically modern humans were more reproductively successful than other contemporary hominins? Or were they? 2 - Why do you think such a small portion of Neandertal or Denisovan DNA exists in the gene pool of modern humans? Why not more? 3 - How might have anatomically modern humans avoided waiting tens of thousands of years for advantageous mutations to pop up that would allow them to adapt to all of these new environments they encountered as they dispersed across the Old World? What might have been a faster way for them to adapt to these environments that the groups who were already in the region had already adapted to? 4 - How does admixture between different regionally adapted populations increase a species chances of survival? 5 - How might the removal of a regionally adapted population make a species more susceptible to extinction?
The nonfunctional pelvis and hind limbs found in some snakes support which statement about evolution?Mutations tend to make species evolve to resemble other species in their environment.Snakes evolved from the same common ancestor as species in which these structures are functional.Selection pressures promoting snake evolution ceased before snake anatomy was well adapted.Snakes began to evolve these structures, but selection pressures did not favor them.
Which situation is most likely an example of convergent evolution? Squid and humans have eyes similar in structure Worms and snakes both move without legs Some bats and birds have wings that allow them to fly all of the above
Which of the following ideas is not included in Darwins theory? a. All organisms that have ever existed arose through evolutionary modifications of ancestral species. b. The great variety of species alive today resulted from the diversification of ancestral species. c. Natural selection drives some evolutionary change. d. Natural selection preserves advantageous traits. e. Natural selection eliminates adaptive traits.
Which of the following statements about evolutionary studies is not true? a. Biologists study the products of evolution to understand the processes causing it. b. Biologists design molecular experiments to examine evolutionary processes operating over short time periods. c. Biologists study the inheritance of characteristics that a parent acquired during its lifetime. d. Biologists study variation in homologous structures among related organisms. e. Biologists examine why a huge variety of species may inhabit a small island cluster.
Exaptations are traits that: a. prepare some organisms for future environmental changes. b. appear in lineages as a result of an adaptive radiation. c. evolve in anticipation of a species future needs. d. are useful in new situations before natural selection alters them for a new function. e. occur in animals, but not in plants.
When systematists study morphological or behavioral traits to reconstruct the evolutionary history of a group of animals, they assume that: a. similarities and differences in phenotypic characters reflectunderlying genetic similarities and differences. b. the animals use exactly the same traits to identify appropriatemates. c. differences in these traits caused speciation in the past. d. the adaptive value of these traits can be explained. e. variations in these traits are produced by environmentaleffects during development.
Which of the following ideas proposed by Lamarck was not included in Darwins theory? a. Organisms change in response to their environments. b. Changes that an organism acquires during its lifetime are passed to its offspring. c. All species change with time. d. New variations may be passed from one generation to the next. e. Specific mechanisms cause evolutionary change.