The Mammalian body — 2026 Past Questions

Lagos State University ZOO101: 185 questions.

Topics: Adaptation to the Environment, Introduction to Mammalian Physiology and Anatomy, Digestion, Absorption, and Nutrition, Gas Exchange and the Circulatory System, Excretory System and Homeostasis, Nervous and Chemical Coordination, Integumentary System, Skeletal System, Respiratory System, Muscular System

1. The study of Animal Anatomy and Dissection is called
   1. Zoography
   2. Zootomy
   3. Physiology
   4. Histology
2. Mammals are studied under
   1. Aplology
   2. Primatology
   3. Mammalogy
   4. Anthropology
3. Study of the distribution of Animals on the surface of the earth is
   1. Morphology
   2. Evolution
   3. Zoography
   4. Zoo geography
4. Who is the Father of Taxonomy?
   1. Charles Darwin
   2. George Cuvier
   3. Carolus Linnaeus
   4. Alfred Wallace
5. In the order of Taxonomic Categories, Infra class is after
   1. Phylum
   2. Subclass
   3. Class
   4. Order
6. Which of the following groups are Lower invertebrates?
   1. Ctenophora
   2. Mammals
   3. Mollusca
   4. Echinodermata
7. Which of the following is not a Protozoa?
   1. Entamoeba coli
   2. Trichomonas tenax
   3. Giardia lamblia
   4. Ascaris lumbricoides
8. Which of these Protozoa is sexually transmitted?
   1. Giardia lamblia
   2. Entamoeba histolytica
   3. Trichomonas vaginalis
   4. Plasmodium vivax
9. Which of the following Protozoa is transmitted by kissing?
   1. Entamoeba gingivalis
   2. Entamoeba histolytica
   3. Entamoeba coli
   4. Giardia lamblia
10. The first group of Animals to have a Central nervous system are the
    1. Platyhelminthes
    2. Nematina
    3. Nematoda
    4. Porifera
11. Digeneans are all these except one
    1. Snails are intermediate host
    2. Are called malacocotylea
    3. Have suckers
    4. Have proglottides
12. Which of the following Platyhelminthes classes is free living and have ciliated epidermis?
    1. Turbellaria
    2. Trematoda
    3. Cestoda
    4. Cestodaria
13. Which Turbellaria order lack gastrovascular cavity?
    1. Polycladida
    2. Acoela
    3. Tricladida
    4. Rhabdocoela
14. Taenia solium is transmitted by eating undercooked
    1. Beef
    2. Pork
    3. Snails
    4. Crabs
15. Schistosoma mansoni snail host is
    1. Bullimus
    2. Lymnea
    3. Cionella
    4. Biomphalaria
16. Which of these Phyla are the Roundworms?
    1. Platyhelminthes
    2. Nematina
    3. Nematoda
    4. Rotifera
17. Which is false about Nematodes?
    1. All structurally alike
    2. Are Aschelminthes
    3. Complete digestive system
    4. Hermaphrodites
18. Which of these is the biggest parasitic Nematode?
    1. Dracunculus medinensis
    2. Ascaris lumbricoides
    3. Trichinella spiralis
    4. Dictyophyme
19. Which of these is a Plant Nematode?
    1. Hookworm
    2. Loa loa
    3. Heteroderma
    4. Trichinella spiralis
20. Which of the following is a free living Nematode?
    1. Longidorus
    2. Trichuris Trichura
    3. Caenorhabditis elegans
    4. Onchocerca volvulus
21. The vector for Dracunculus medinensis is
    1. Culex mosquito
    2. Chrysops
    3. Cyclops
    4. Simulium fly
22. Larval form of hemichordates is
    1. Tornaria
    2. Crinoida
    3. Nauplius
    4. Cartapillar
23. Balanoglossus belongs to the group
    1. Platyhelminthes
    2. Annelida
    3. Cephalochordata
    4. Hemichordata
24. Advanced chordates originated from
    1. Amphioxus
    2. Tachoglossus
    3. Balanoglossus
    4. Starfish
25. In one of the following, notochord is limited to proboscis
    1. Hemichordata
    2. Urochordata
    3. Cephalochordata
    4. Mammals
26. Urochordates are mostly
    1. Sedentary
    2. Pelagic
    3. Nelaton
    4. Benthos
27. Intestine is U-shaped in
    1. Enteropneusta
    2. Rhabdopleura
    3. Balanoglossus
    4. Herdmania
28. Balanoglossus gigas is found in
    1. Brazil
    2. Argentina
    3. South Africa
    4. Lagos
29. In Urochordates, notochord is present
    1. Throughout the body
    2. In the abdominal region
    3. Only in the larval tail
    4. Larval pharynx
30. The Nervous system of Echinoderms consist of
    1. Specialized Nerve net only
    2. Central nerve ring and five radiating arms
    3. A central brain with ganglia
    4. None of the above
31. Echinoderms share a common ancestry with
    1. Cephalochordates only
    2. Hemichordates and Chordates
    3. Urochordates
    4. Hemichordates only
32. Water enters the water vascular system of echinoderms through the
    1. Pedicellariae
    2. Spines
    3. Madreporite
    4. Mouth
33. Which canal connects the madreporite to the ring canal in an echinoderm?
    1. Lateral
    2. Stone
    3. Radial
    4. Ring
34. Most echinoderms have number of arms
    1. Three
    2. Ten
    3. Fifty
    4. Five
35. Paragastric cavity of sponges is lined by
    1. Amoebocytes
    2. Chromocytes
    3. Choanocytes
    4. Pinacocytes
36. Which of the following is a fresh water sponge?
    1. Spongia
    2. Sycon
    3. Euplectella
    4. Spongilla
37. Nutrition in Sponges is
    1. Extracellular
    2. Intracellular
    3. First extracellular and then intracellular
    4. First intracellular and then extracellular
38. Which of this is a polymorphic coelenterate?
    1. Obelia
    2. Hydra
    3. Aurelia
    4. Adamia
39. Symmetry of ctenophores is generally
    1. Bilateral
    2. Radial
    3. Biradial
    4. Absent
40. Comb plates of ctenophores possess
    1. Cilia for locomotion
    2. Cilia for filter feeding
    3. Teeth for crushing
    4. Teeth for filtering
41. The floaters types of Rotifera are usually
    1. Globular and Sickle
    2. Elongated and wormlike
    3. Vaselike
    4. Cuticular envelope
42. Mastax is a characteristic associated with
    1. Nematomorpha
    2. Entoprocta
    3. Rotifera
    4. Kinorhyncha
43. Wheel animaculae is another name for phylum
    1. Chordata
    2. Anthropora
    3. Rotifera
    4. Nematina
44. Rotaria is an example of
    1. Class Monogononta
    2. Class Seisonidea
    3. Class Bdelloidea
    4. Class Phasmidia
45. Ribbon worms is another name for Phylum
    1. Rhynchocoela
    2. Nematoda
    3. Nematomorpha
    4. Acanthocephalan
46. Class Monogononta produces how many kinds of eggs?
    1. 2
    2. 3
    3. 4
    4. 5
47. Phylum Rotifera consists of how many classes?
    1. 2
    2. 3
    3. 4
    4. 6
48. Morphological Shapes are essential features of what in Rotifera?
    1. Mode of Life
    2. Circulation
    3. Ecology
    4. Reproduction
49. Which of the following is not a member of the phylum mollusca?
    1. Clams
    2. Slugs
    3. Leeches
    4. Oysters
50. Many snails serve as vectors in the transmission of parasites of
    1. Cestodes
    2. Trematodes
    3. Nematodes
    4. All of the above
51. Which of these features do not apply to molluscs?
    1. Triploblastic
    2. Unsegmented coelomates
    3. Segmented coelomates
    4. All of the above
52. The viscera mass of molluscs is covered by a skin known as
    1. Hypobranchium
    2. Matrix
    3. Mantle
    4. Mollis
53. The peculiar larval form of mollusc is
    1. Trocophore
    2. Veliger larva
    3. Muller larvae
    4. Cercaria larva
54. In mollusc, the process of torsion takes place in the
    1. Adult stage
    2. Larva stage
    3. Juvenile stage
    4. None of the above
55. Most members of the class Bivalvia are
    1. Terrestrial
    2. Aquatic
    3. Semi-aquatic
    4. None of the above
56. The most intelligent members of the mollusc are found in the class
    1. Gastropoda
    2. Polyplacophora
    3. Bivalvia
    4. Cephalopoda
57. Metamerism in annelids is an opportunity for
    1. Development
    2. Functional specialization
    3. Growth of annelids
    4. None of the above
58. The excretory organs of annelids are called
    1. Cilia
    2. Flagella
    3. Nephridia
    4. Chaeta
59. Members of the class Polychaetes are represented by
    1. Hirudo
    2. Earthworm
    3. Nereis
    4. None of the above
60. In Hirudo the food is usually stored in the
    1. Gut
    2. Caeca
    3. Rumen
    4. Mantle
61. On each pair of segment in annelids, there is
    1. A nerve
    2. A ganglion
    3. A brain
    4. A nerve cord
62. The name Arthropoda was established by whom and in what year?
    1. Lammark, 1846
    2. Seibold, 1946
    3. Aristotle, 1955
    4. Von Seibold, 1845
63. Arthropods have an ______ circulatory system and the heart is ______
    1. Closed, linear
    2. Empty, tubular
    3. Open, tubular
    4. Wide, longitudinal
64. In spiders the main excretory product is ______ and that of insects is ______
    1. Uric acid, uric acid
    2. Urea, guanine
    3. Guanine, uric acid
    4. Xanthin, guanine
65. The tusks of elephants are
    1. Elongated canines
    2. Elongated incisors
    3. Elongated molars
    4. Elongated premolars
66. The ______ is generally referred as the age of mammals
    1. Mesozoic
    2. Jurassic
    3. Cenozoic
    4. Paleozoic
67. Which of the following is the largest group of mammals?
    1. Rodentia
    2. Insectivora
    3. Chiroptera
    4. Carnivora
68. The Duck billed platypus is found in
    1. Australia
    2. Australia and New Guinea
    3. New Guinea
    4. Australia and Guinea
69. The longest gestation period in mammals is found in
    1. Cats and dogs
    2. Elephants
    3. Chimpanzees
    4. Humans
70. One of the following is not a Marsupial
    1. Shrews
    2. Opossum
    3. Koala
    4. Tasmanian devil
71. The study of Marine animals is
    1. Cytology
    2. Hydrobiology
    3. Cytology
    4. Malacology
72. An application of Zoology is
    1. Aquaculture
    2. Botany
    3. Botany
    4. Taxonomy
73. A scientific update for Genetics was
    1. G. Cuvier
    2. C. Darwin
    3. G. Mendel
    4. J. Goudal
74. Modern concept of genus and species was proposed by
    1. Aristotle
    2. J. Ray
    3. E. Haeckel
    4. C. Linnaeus
75. Which of these is a trinomial nomenclature?
    1. H. sapiens
    2. T. b. brucei
    3. R. rattus
    4. G. lamblia
76. Which taxonomic category is capable of interbreeding?
    1. Phylum
    2. Class
    3. Species
    4. Family
77. This does not describe a Protozoa
    1. Unicellular
    2. Diploblastic
    3. First animals
    4. Primitive
78. Protozoa without locomotory organelle are
    1. Mastigophoran
    2. Ciliate
    3. Sarcodine
    4. Apicomplexan
79. All these Phyla are lower invertebrates except
    1. Cnidarians
    2. Ctenophora
    3. Porifera
    4. Echinodermata
80. One of these Phyla is a higher invertebrate
    1. Annelida
    2. Protozoa
    3. Ctenophora
    4. Nematina
81. A ciliophoran with cilia around the peristome is
    1. Holotrichia
    2. Spirotrichia
    3. Peritrichia
    4. Suctoria
82. Which of these protozoa is an Aconoidasida?
    1. Toxoplasma
    2. Eimeria
    3. Plasmodium
    4. Cyclosporia
83. All are Phytomastigophoran except
    1. Englena
    2. Mastigophora
    3. Pultivora
    4. Volvox
84. Which protozoan causes sleeping sickness?
    1. Trypanosoma
    2. Giardia
    3. Babesia
    4. P. tenuipes
85. A Protozoan parasite of chicken birds is
    1. Isospora
    2. Toxoplasma
    3. Eimeria
    4. Stentor
86. Malaria is caused by
    1. Trypanosoma
    2. Giardia
    3. Babesia
    4. Plasmodium
87. Coral reef forming coelenterates belong to the class
    1. Hydrozoa
    2. Scyphozoa
    3. Anthozoa
    4. All of the above
88. Nematocysts are the special cells found in the phylum
    1. Cnidaria
    2. Porifera
    3. Ctenophora
    4. Annelida
89. Among Coelenterates medusoid are absent in members of class
    1. Anthozoa
    2. Hydrozoa
    3. Scyphozoa
    4. None of the above
90. The body cavity of Hydra is
    1. Hydrocell
    2. Homocoel
    3. Coelom
    4. Coelenteron
91. Another name for Ctenophora is
    1. Comb jellies
    2. Jellyfish
    3. Sponges
    4. Cnidarians
92. Tapeworms lack which system?
    1. Digestive
    2. Reproductive
    3. Nervous
    4. Excretory
93. Planarians, liver fluke and Taenia are all
    1. Segmented
    2. Coelomates
    3. Found in the gut
    4. Flatworms
94. Pig acquires the infection of Taenia in question of
    1. Oncosphere
    2. Hresen
    3. Cysticercus
    4. None of the above
95. Bladder worm is found in
    1. Humerus
    2. Cow or pig muscles
    3. Human faeces
    4. Soil
96. Flatworms are characterized by presence of
    1. Protonephridia
    2. Renette cells
    3. Cranialis
    4. Nephridia
97. The first phylum with blood system is
    1. Rotifera
    2. Nematina
    3. Porifera
    4. Cnidaria
98. The first Phylum with food segmentation system is
    1. Nematina
    2. Rotifera
    3. Protozoa
    4. Anopoda
99. The Nematina structure used for excretion is
    1. Protonephridia
    2. Renette cells
    3. Nephridia
    4. Flame cells
100. Rotifera is divided into the following except
     1. Bdelloidea
     2. Seisonidae
     3. Monogononta
     4. Philodina

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