3. Linear evolution suggests that there is a ladder, or step- progression, to evolution over time -- one species building and transitioning into another species. A bushy interpretation of evolution suggests multiple overlapping species of hominins, with some species short-lived, and others existing for a long period of time. What type of evolutionary model does A. sediba support? Explain your answer.

3. Linear evolution suggests that there is a ladder, or step- progression, to evolution over time -- one species building and transitioning into another species. A bushy interpretation of evolution suggests multiple overlapping species of hominins, with some species short-lived, and others existing for a long period of time. What type of evolutionary model does A. sediba support? Explain your answer.

Biology 2e

2nd Edition

ISBN:9781947172517

Author:Matthew Douglas, Jung Choi, Mary Ann Clark

Publisher:Matthew Douglas, Jung Choi, Mary Ann Clark

Chapter19: The Evolution Of Populations

Section: Chapter Questions

Problem 4RQ: What is the difference between micro- and macroevolution? Microevolution describes the evolution of...

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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…
2. The presence of homologous structures is a strong indicator that the organisms evolved from common ancestors. Which type of evolution does the statement describe? * a. Divergent Evolution b. Convergent Evolution c. Evolution Theory d. Competent Evolution
3. What is the difference between homologous and analogous traits? In your answer, describe an example of convergent evolution.
4. Which of the following is an example of convergent evolution? Group of answer choices a. A population of finches becomes separated in the Galapagos Islands and begins to develop into two different species of finch b. Two different species of plants in separate deserts evolve a similar waxy outer cuticle to preserve water c. One species of lizard evolves a green coloration to blend in with its tropical forest surroundings, whereas another species evolves a tan coloration to blend in with its desert surroundings d. Because they share a recent common ancestor, Lions and Bengal Tigers both have retractable claws for catching prey e. Melanic moths begin to lose pigment in their wings as the environment becomes less polluted 6. Which of the following scenarios is an example of stabilizing selection? Group of answer choices a. A population of sharks is evolving towards the average body size; small sharks fall prey to killer whales, large sharks can't get…
Which of the following does not contribute to the study of evolution? a. population genetics b. inheritance of acquired characteristics c. the fossil record d. DNA sequencing e. comparative morphology
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.
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.
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.
What is the difference between micro- and macroevolution? Microevolution describes the evolution of small organisms, such as insects, while macroevolution describes the evolution of large organisms, like people and elephants Microevolution describes the evolution of microscopic entities, such as molecules and proteins, while macroevolution describes the evolution of whole organisms Microevolution describes the evolution of organisms in populations, while macroevolution describes the evolution of species over long periods of time Microevolution describes the evolution of organisms over their lifetimes, while macroevolution describes the evolution of organisms over multiple generations.
The process in which environmental pressures result in the differential survival and reproduction of individuals of a population is called _________. a. catastrophism b. evolution c. natural selection d. genetics
Which of the following could be an example of microevolution? a. a slight change in a bird populations color due to a smallgenetic change in the population b. large differences between fossils found near the groundsurface and those found in deep rock layers c. the sudden disappearance of an entire genus d. the direct evolutionary link between living primates andhumans e. a flood that drowns all members of a population
Which of the following does not help systematists determine whether a morphological character state is ancestral or derived? a. outgroup comparison b. patterns of embryonic development c. studies of the fossil record d. studies of the character in more related species e. dating of the character by molecular clocks