Question

In the tree to the right, assume that the ancestor had a long tail, ear fape, claws. Based on the tree and assuming that all evolutionary changes n A. long tail, ear flaps, external testes, and fixed claws traits does a sea lion have? these traits are shown, what B. short tail, no ear flaps, external testes, and fixed claws C. short tail, no ear flaps, abdominal testes, and fixed claws tail, ear flaps, abdominal testes, and fuxed claws long tail, ear flaps, abdominal testes, and retractable claws 11. The graphic below is a map depicting where the fossils of various organisms have different continents. This map also depicts our best understanding of the relative position the continents in the earth's early history. The separation of the continents and the separation of the organisms on these continents allowed for: of some of A B. C. Extinction, as the organisms were separated they could not survive as smaller groups The production of new species, as groups of organisms, were permanently separated. Organisms to remain unchanged, given the very slow movement of the continents and the slow rate of evolution. Organisms to interbreed, as their home ranges changed they joined together with other groups of organisms. The organisms were aware enough to know it was vital to move between continents D. E. 12. Researchers collected rock pocket mice across the Arizona Sonoran ocations, they collected 114 light colored mice and 48 dark colored mice. If the light fur alliele is recessive to the dark fur allele, calculate the frequency of the light fur allele which included both dark, rocky lava outcrops and light, rocky, granite areas. In two A. 0.70 B. 0.30 C. 0.54 D. 0.49 E. 0.84 80 70 60 50 40 30 20 a larger lizard predator, Leiocephalus carinatus naturally colonized the island. The graphs show the average tree perch height (cm) and perch diameter (mm) of A. sagrei before colonization by L carinatus (April 1996) and following colonization from April 1997 to April 1999. Which of the following statements best describe the changes to A. sagrei based on the graph? Schoener, et al. 2002. Ecological Monographs. 73(3): 383-407 13. The lizard, Anolis sagrei lives on a small island in the Bahamas. In April 1996, A. The population of the A. sagrei decreased due to the new lizard. B. Competition for resources increased due to the new lizard. C. The realized niche of A. sagrei changed due to the new lizard. D. There was no change to the behavior of A. sagrei due to the new 1998 1997 1998 19 A. sagrei grew larger due to the new lizard. E.

Answer 1

10: the correct option is (c)

lo clane testes Short toi Foom the tree we cary bee toa eas, ea and wtbior o abdominal teate wity te evolutior o abdomina teate Saturday 18 1 r0 got -pue亼eaved on-lea..w -Thea etre. eer lions have Sunday 19 and-exed d

11: Separation caused by a geographical barrier allows the organisms of an ancestral species to evolve into two or more descendant species after a period of time. That leads to the production of new species. Therefore, the correct option is (B)

12: 13: Introduction of L.carinatus had strong negative effects on anoles and positive effects on spiders (A.sagrei eat spiders and insects) and but less consistent effects on insects and plants. With regard to evolution.  A. sagrei started eating different prey, having a stronger impact on arboreal species and a lesser one on terrestrial ones. They started living on trees (ofcourse, for escaping).However, over time, the browns adapted to the arboreal life, and as a result, their impact on arboreal prey increased over time. ( There was introduced of long legs trait for A.sagrei, but the natural selection favoured short legs over long ones).

OCT 2014 2. dark colored d = Light colored D is dosminant oves d No dark colored mice 48 light colores mice No' Total popubation43 114462 o, recessive mice ase al diaht colored t) 114 So,一.recesave muce-da e all light colored ( = 114-0, 7037 o, 84 Coreot Ana is (E)0.34

therefore the correct answer should be (c) the realised niche of A.sagrei changed due to the new lizard.