Animal Diversity — 2020 Past Questions

University of Ilorin ZOO102: 42 questions.

Topics: Diversity of animal forms, structures, and functions., General classification of the animal kingdom, New trends in systematics, History of animal diversity, categorization, Multicellularity and embryonic layer development., Animal phylogenetics tree, animal systematics, geographical distribution of animal life.

1. Which of the following does not undergo ecdysis?
   1. Polychaetes
   2. Snakes
   3. Cockroaches
   4. Insects
2. Which of these is the intermediate host of Taenia saginata?
   1. Dog
   2. Cattle
   3. Pig
   4. Goat
3. Which is not a function of the tegument in platyhelminthes?
   1. Reproduction
   2. Secretion
   3. Digestion
   4. Protection
4. Which class out of the following lacks holozoic (trophic) feeding ability?
   1. Sporozoans
   2. Ciliophora
   3. Rhizopoda
   4. Euglenophyta
5. The most advanced cnidarian class is
   1. Scyphozoa
   2. Anthozoa
   3. Cubozoa
   4. Hydrozoa
6. Which of the following is a distinguishing factor of Ciliophora?
   1. Unicellular and uninucleate
   2. Multinucleate
   3. Motile
   4. Free-living
7. What class of radiate has no medusa stage?
   1. Anthozoa
   2. Hydrozoa
   3. Cubozoa
   4. Scyphozoa
8. Rhabdites are found in
   1. Trematoda
   2. Turbellaria
   3. Cestoda
   4. Nematoda
9. Sponges are in favour of
   1. Protogyny
   2. Protandry
   3. Both
   4. None
10. The reason for the name 'Arthropoda' is because of their
    1. Body segments
    2. Jointed appendages
    3. Triploblastic nature
    4. Metameric segmentation
11. The sense organ in Ctenophora is the
    1. Tentaculocyst
    2. Statocyst
    3. Nematocyst
    4. Cnidocyte
12. Which of these is used to determine the presence of Ascaris sp.?
    1. Blood
    2. Faeces
    3. Tissue
    4. Cerebrospinal fluid
13. Prawn is a part of which phylum?
    1. Annelida
    2. Arthropoda
    3. Echinodermata
    4. Platyhelminthes
14. What is the excretory product of Cephalopods?
    1. Uric acid
    2. Ammonia
    3. Urea
    4. Dissolved nitrogen
15. Mosquito appendages are divided into
    1. Head, thorax, abdomen
    2. Abdomen, cephalothorax
    3. Prosoma, opisthosoma
    4. Head, thorax
16. Which taxonomist was the first to create a logical classification system?
    1. Charles Darwin
    2. John Ray
    3. Aristotle
    4. Carolus Linnaeus
17. Which animal does not have mandibles?
    1. Spider
    2. Tick
    3. Scorpion
    4. Millipede
18. The mesoglea of Anthozoa is
    1. Thin, non-cellular, fibrous
    2. Thin, non-cellular, gelatinous
    3. Thick, cellular, gelatinous
    4. Thick, cellular, fibrous
19. Classification of Porifera is based on
    1. Locomotion
    2. Skeletal composition
    3. Size
    4. Body shape
20. The glue cells on the contractile tentacles of Pleurobrachia used to catch prey are called
    1. Cnidoblast
    2. Statocyst
    3. Colloblast
    4. Combs
21. Which is concerned with phylogenetic taxonomy?
    1. Internal features
    2. External features
    3. Everything concerning the organism
    4. Nucleotide arrangement of organisms
22. The correct order of taxa that shows increasing inclusiveness is
    1. Infraclass → Subclass → Class → Superclass
    2. Subclass → Infraclass → Superclass → Class
    3. Superclass → Class → Subclass → Infraclass
    4. Class → Superclass → Subclass → Infraclass
23. Which of the following is a pseudocoelomate?
    1. Nematode
    2. Platyhelminthes
    3. Porifera
    4. Annelida
24. Which of these is a sporozoan?
    1. Diffugia
    2. Trypanosoma
    3. Vorticella
    4. Monocystis
25. Which of these taxonomic ranks is the most exclusive?
    1. Class
    2. Species
    3. Kingdom
    4. Phylum
26. Entamoeba histolytica is classified under the phylum
    1. Zoomastigina
    2. Apicomplexa
    3. Rhizopoda
    4. Ciliophora
27. Which of these is incorrect about cephalopods?
    1. They are dioecious
    2. Haemocoelic system is present
    3. They excrete dissolved nitrogen
    4. They have 2-4 pairs of kidneys
28. Scientists have a problem of classification as a result of a high rate of
    1. Reproduction
    2. Extinction
    3. Evolution
    4. Migration
29. Which class in Cnidaria does not have a medusa form?
    1. Anthozoa
    2. Scyphozoa
    3. Hydrozoa
    4. Cubozoa
30. Multicellularity has effects of the following except?
    1. Ability to attain large size
    2. Ability to move from aquatic habitat
    3. High level of specialization
    4. Increase in surface area to volume ratio
31. The flattened polygonal cells of sponges found in the outer epidermal layer are called
    1. Nematocysts
    2. Cnidocytes
    3. Pinacocytes
    4. Porocytes
32. Which of the following has gills as its respiratory organ?
    1. Copepod
    2. Moth
    3. Spider
    4. Grasshopper
33. The taxonomy which involves grouping on the basis of evolutionary and genetic relationship is
    1. Phyletic
    2. Phenetic
    3. Homology
    4. Cytotaxonomy
34. Which cells secrete the skeleton in sponges?
    1. Choanocytes
    2. Pinacocytes
    3. Sclerocytes
    4. Thesocytes
35. Which of the following is not true about phylum Radiata?
    1. They are triploblastic
    2. They are radially symmetrical
    3. Their body cells form perfect tissues
    4. They have an incomplete alimentary canal
36. The organism known as 'dead man's fingers' coral is in which of the following classes?
    1. Hydrozoa
    2. Scyphozoa
    3. Anthozoa
    4. Cubozoa
37. Which of the following is not a mandibulate?
    1. Millipede
    2. Scorpion
    3. Crustacean
    4. Insect
38. Which of the following has a closed circulatory system?
    1. Oyster
    2. Neopilina
    3. Snail
    4. Cuttlefish
39. A good classification system will encourage the following, except
    1. Being accepted by all zoologists
    2. Not classifying all animals
    3. Easy retrieval of information
    4. The discovery of new animals
40. What is used for removal of waste in Planaria?
    1. Kidney
    2. Nephridia
    3. Flame cells
    4. Malpighian tubules
41. Natural classification has the following characteristics except
    1. It has no imposed characteristics
    2. It transcends human interpretation and judgement
    3. It is based on evolutionary relationship
    4. It is based solely on morphological similarity
42. The Radiates have one of the following features except
    1. Presence of tentacles
    2. Triploblastic
    3. Radially symmetrical
    4. Presence of cnidocytes

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