ZOO511T Current MCQs 2024 by Ayesha Butt

Zoo-511T · Principles Of Systematics (Objective) · CURRENT PAPER SPRING 2024 · By (AYESHA BUTT) · VU EXPERT ZOOLOGIST · “””Multiple Choice Questions””

1. **Spider venom is used in the treatment of disease:** **Cancer**

2. **Which organ of arthropods is used to inject venom:** **Chelicerae**

3. **Which is not a component of silk:** **Phospholipid**

4. **Length of egg of green lacewing:** **Approximately 1/2 inch**

5. **Diploblastic organisms don't have:** **Mesoderm**

6. **Spiders have:** **4 pairs of eyes**

7. **Which is not a homologous structure:** **Wings of a bird**

8. **Color of compound eyes of whitefly:** **Red**

9. **Blue and yellow sticky traps:** **Thrips**

10. **Organisms that are morphologically similar but reproductively isolated:** **Sibling species**

11. **Scientific name of leopard shark:** **Triakis californica**

12. **Word taxis means:** **Arrangement**

13. **Measure of central tendency for normal data is mean and median for:** **Skewed data**
14. **Degrees of Freedom (DF) within group:** **Number of observations - number of groups**

15. **Degrees of Freedom (DF) between groups:** **Number of groups - 1**

16. **Our null hypothesis is rejected if calculated value is:** **Greater than the tabulated value**

17. **Accumulation curve is used to represent:** **cumulative number of species

18. **Which is not a part of reference:** **Place of collection**

19. **Evolution is a:** **Gradual and continuous process**

20. **Animal that kills and consumes other organisms:** **Predator**

21. **Species are the product of:** **Evolution**

22. **The first animal that moved from water to land:** **Likely amphibians**

23. **Which organisms maintain temperature by absorbing heat from the environment:** **Amphibians**

24. **Which organisms are exclusively marine:** **Echinoderms**

25. **A character which is consistently present in one group and absent in a related group should have** high weight**

26. **Complicated form of cluster sampling:** **Multistage sampling**

27. **Phenogram definition:** **True**

28. **Chelicerae comprises:** **Coxa, tibia, tarsus**

29. **No taxonomic study is completed until its:** **Results are published**

30. **Who is called the Darwin of the 20th century?** **Ernst Mayr**

31. **What does the term "phenon" refer to?** **A term used for the different forms or phenotypes that may occur within a single population**
32. **Why is fixation a crucial step in animal preservation?** **It halts decomposition and preserves the structure**

33. **Epigastric plates are on which body part?** **On the ventral side of abdomen**

34. **Evolutionary trees are constructed based on:** **Homology**

35. **Which of the following is used to study the evolutionary history of species:** **Phylogenetics**

36. **The term "phylogeny" refers to:** **Evolutionary relationships**

37. **Genetic drift has a larger effect in:** **Small populations**

38. **Which of the following is not a type of genetic drift:** **Natural selection**

39. **Homologous structures indicate:** **Common ancestry**

40. **Analogous structures arise due to:** **Convergent evolution**

41. **The study of fossils is called:** **Paleontology**

42. **The term "speciation" refers to:** **Formation of new species**

43. **Which of the following is an example of allopatric speciation:** **Geographically isolated**(Galapagos finch)

44. **Sympatric speciation occurs without:** **Geographic isolation**

45. **The process by which organisms better adapted to their environment tend to survive and produce more offspring is called:** **Natural selection**

46. **Genetic recombination occurs during:** **Sexual reproduction**

47. **Which of the following is not a mechanism of reproductive isolation:** **Gene flow**

48. **The Hardy-Weinberg principle describes:** **Genetic equilibrium**

49. **Which of the following is not a condition for Hardy-Weinberg equilibrium:** ***

50. **Which of the following is a prezygotic barrier:** ****

51. **Which of the following is a postzygotic barrier:** ****

52. **The study of the distribution of species and ecosystems in geographic space and through geological time is called:** **Biogeography**

53. **Which of the following is not a type of genetic variation:** **Homologous**

54. **Which concept emphasizes the importance of genetic differences in evolution:** **Population genetics**
55. **The process by which unrelated species evolve similar traits:** **Convergent evolution**

56. **The primary source of genetic variation in a population:** **Mutations**

57. **The evolutionary process by which new species arise from a single ancestral species:** **Speciation**
58. **The phenomenon where an organism's traits are more suited to a particular environment due to evolutionary pressures:** **Adaptation**

59. **The process by which traits are passed from parent to offspring:** **Inheritance**

60. **The study of how traits are inherited from one generation to the next:** **Genetics**
61. **The term used to describe the diversity of species within a particular habitat:** **Biodiversity**
62. **The type of evolution where two or more species become more dissimilar over time:** **Divergent evolution**
63. **The principle stating that only a small fraction of the genetic variation is due to selection:** **Neutral theory**
64. **The concept that species evolve in response to changes in their environment:** **Ecological evolution**