ANIMAL DIVERSITY
1. The simplest extant animal that have Hox gene that regulate formation of water
channels in the body wall are
a) Sponges
b) Cnidaria
c) Ectoprocta
d) Placozoa
2. Vertebrates made the transition to land and diversified into numerous terrestrial
groups around
a) 460 million year ago
b) 360 million years ago
c) 251 million years ago
d) 65.5 million years ago
3. A group whose members share key biological feature are called
a) Calde
b) Grade
c) Species
d) None of them
4. True tissues are absent in
a) Brachiopoda
b) Cycliophora
c) Sponges
d) Rotifer
5. The germ layer that forms the muscle and most other organs between the digestive
tract and outer covering of the animal is called
a) Ectoderm
b) Mesoderm
c) Endoderm
d) All above
6. A pattern in many animals with protostome development is
a) Spiral cleavage
b) Determinate cleavage
c) Radial cleavage
d) Indeterminate cleavage
7. Example of deutrostome development is
a) Annelids
b) Mollusks
c) Chordates
d) Both a and b
8. A group that includes an ancestral species and all of its descendants are called
a) Grade
b) Clade
c) Population
d) Both a and b
9. Among the characteristics unique to animals is
a) Gastrulation
b) Flagellated sperm
c) Multicellularity
d) Heterotrophic nutrition
10. The distinction between sponges and other animal phyla is based mainly on the
absence versus the presence of
a) A body cavity
b) True tissue
c) A complete digestive tract
d) Mesoderm
11. Acoelomates are characterized by
a) The absence of brain
b) A solid body without a cavity surrounding internal organ
c) The absence of mesoderm
d) Deutrostome development
12. Dinosaurs were the dominant land vertebrates during
a) Neoproterozoic Era
b) Paleoproterozoic Era
c) Coenozoic Era
d) Mesozoic Era
13. Brachiopods have a crown of ciliated tantacles that function in feeding called
a) Ammonites
b) Copepods
c) Lophophore
d) Padipalps
14. Which one is a clade of animals with true tissue
a) Eumetazoa
b) Ecdysozoa
c) Lophotrochozoa
d) Metazoan
15. The Cambrian explosion was followed by the
a) Ordovician
b) Silurian
c) Devonian
d) All above
16. Duration of Mesozoic Era is
a) 1 Billion -542 MYa
b) 542-521 MYA
c) 251-65.5 MYA
d) 65.5 MYA to present
17. All eukaryotes have genes that regulate the expression of other genes, and many of
these regulatory genes contain common sets of DNA sequences called
a) Homeoboxes
b) Hox genes
c) Genopore
d) Ampulla
18. Extant species of animals that biologists have identified to date
a) 1.2 million
b) 1.3 million
c) 1.4 million
d) 1.5 million
19. Which one of the following play important roles in the development of animal
embryo, controlling the expression of dozens or even hundreds of other genes that
influence animal morphology
a) Nervous system
b) Cardiac system
c) Homeobox
d) Hox genes
20. The first generally accepted macroscopic fossils of animals range in age from
a) 565-550 mya
b) 565-542mya
c) 575-550 mya
d) 251-65.5 mya
21.How many species of living chondrichthyans?
(a) 600
(b) 700
(c) 750
(d)
650
22.The dorsal fin of sharks act as……..
(a) Stabilizer
(b) Byoyancer
(c) Balancer
(d) Detection
23.Sharks are……….
(a) Bulk feeders
(b) Suspension feeders (c) Fluid feeders (d) none of these
24.Large amount of oil in shark’s liver helps in…….
(a) Buoyancy
(b) Capturing prey
exchange
25.Pectoral fins of rays act as……..
(c)
Detoxification
(d) gaseous
Waterwings
(b) venomous barb
(c) claspers
(d) whiplike
26. Mammals belong to the group of amniotes known as:
a. Anapsids
b. Synapsids
c. None of these
27. A distinctive characteristic of synapsids is:
a. Single temporal fenestra
b. Double temporal fenestra
c. Triple temporal
fenestra
28. Hole behind the eye socket on each side of the skull is known as:
a. Retina
b. Optic nerve
c. temporal fenestra
29. Synapsid evolved into large herbivores and carnivores during the period:
a. Permian
b. Triassic
c. Jurassic
30. First true mammals arose in the period:
a. Jurassic
b. Triassic
c. Cretaceous
31. Three major lineages of living mammals: monotremes, marsupials and eutherians
emerged in:
a. Early cretaceous period
b. Permian
c. Carboniferous period
32. Monotremes are found only in:
a. Australia
b. New Guinea
c. Both a & b
33. Red kangaroo is about the size of:
a. Horse
b. Dog
c. Honey bee
34. Marsupials existed worldwide during the era:
a. Mesozoic
b. Cenozoic
c. Paleozoic
35. Today no. of marsupial families live outside the Australian region:
a. Two
b. Three
c. Four
36. Eutherians are commonly called as:
a. Placental mammals
b. Egg laying mammals
c. Marsupials
37. Eutherians have pregnancy longer than:
a. Marsupials
b Monotremes
c.None
38. Humans are members of:
a. Lemurs
b. Monkeys
c. Apes
39. Primates have:
a. Large brain and short jaws
b. Short brain and short jaws
and large jaws
40. Monotremes diverged from other mammals:
a. 150 MYA
b. 180 MYA
c. 120 MYA
41. Marsupials diverged from eutherians:
a. 140 MYA
b. 170 MYA
c. 120 MYA
42. Elephants belong to order:
a. Proboscidea
b. Monotremata
c. Xenarthras
43. Rabbits belong to order:
a. Rodentia
b. Lagomorpha
c. Carnivora
44. Travelling by swinging from branch to branch in trees:
a. Brachiating
b.Crawling
c.None
45. Lemurs, tarsiers, anthropoids belong to order:
a. Primates
b. Rodentia
c. Carnivora
46. Tarsiers are more closely related to:
a. Anthropoids
b. Lemurs
c. Birds
c.Large brain
47. Apes diverged from:
a. Old World monkeys
b. New world monkeys
c.Monotremes
48. Shy apes includes:
a. Orangutans
b. Gorillas
c. Gibbons
49.Gorillas are:
a. Largest apes
b. smaller apes
c.Shy apes
50. Homo sapiens are:
a. 200,000 years old
b. 30000 years old
c. 17000 years old
51. Human genome resembles with apes:
a.99%
b. 97%
c. 10%
52. Humans and chimpanzees differ in the expression of regulatory genes:
a. 19
b. 27
c. 30
53. Study of human origin is known as:
a. Paleoanthropology
b. Paleontology
c. Ethology
54. Hominins are more closely related to:
a. Humans
b. Chimpanzees
c. Apes
55. Hominins brain have volume:
a.400-450cm3
b. 300 cm3
56. Monotremes lack
a. Nipples
b. Hair
c. Both
57.life has existed on Earth for at least
a. 3.5 billion years ago
b. 3.0 billion years ago
c. 250-700cm3
c. 4.5 billion years ago
d. 2.5 billion years ago
58.the genomes of humans and chimpanzees are same
a. 99%
b. 95%
c. 90%
d. 98%
59.humans and chimpanzees differ in the expression of ------regulatory genes.
a. 19
b. 18
c. 17
d. 15
60.The study of -------- origins is known as paleoanthropology.
a. Human
b. Reptiles
c. Fossils
d. Arthropods
61. The hole at the base of the skull through which the spinal cord
a. foramen magnum
b. paramen magnum
c. hind magnum
d. thyroid magnum
62. The volume of human brain is
a. 1300 cm³
b. 1000 cm³
c. 1500 cm³
d. 1200 cm³
63. Hominin diversity increased dramatically between
a. 4 and 2 million years ago.
b. 5 and 6 million years ago.
c. 3 and 4 million years ago.
d. 2 and 3 million years ago.
64. Himalayanmountain range had formed,
a. about 10 million years ago
b. about 20 million years ago
c. about 30 million years ago
d. about 40 million years ago
65. As a chimpanzee walks, it uses the amount of energy used by a human.
a. 2 times
b. 3 times
c. 4 times
d. 6 times
66. Homo erectus originated in
a. Africa
b. America
c. Europe
d. Asia
67. human DNA show that Europeans and ------share a relatively recent common ancestor
a. Asians
b. Africans
c. Australians
d. Americans
68. miniature brains, a condition called microcephaly.
a. microcephaly.
b. Microrenology.
c. microanthropology.
d. Microcardiology.
69. Synapsids evolved into a large herbivores and carnivores during
a. Permian period
b. Cretaceous period
c. Jurassic period
d. periodTriassic
70. The ________ encloses a compartment of fluid that bath the embryo and act as shock
absorber:
a) Allantois
b) Chorion
c)Amnion
71.-------------- use their rib cages to ventilate their lungs:
a) Anamniotes
b)Amniotes
c) both
72.The membrane of allantois functions with the -------------- as a respiratory organ:
a) Amnion
b) Chorion
c) Yolk sac
73.The ---------- clade include the groups plesiosaurs and ichthyosaurs:
a) Amphibians
b) Reptiles
c) birds
74.Snakes and Lizards are:
a) Viviparous
b) Oviparous
c) Oviviviparous
75. The embryos of reptiles and mammals form ----------- extraembryonic membranes:
a) Three
b) four
c) Two
76. Lizards and Snakes are ----------------:
a)Warm blooded
b) Endothermic
c) Cold blooded
77. First major group of reptiles to emerg were:
a)Parareptiles
b) Diapsids
c) Archosaurs
78. Ornithischians and Saurischiana are the lineages of ------------:
a)Birds
b) Reptiles
c) Dinosaurs
79. The tuataras are about -------------cm long;
a) 50
b) 40
c) 45
80. ------------ are the legless lepidosaurs:
a) Lizards
b) Tuataras
c) Snakes
81. pleurodires and Cryptodires are the types of:
a)Turtles
b) Alligators
c) crocodiles
82. Power for the flapping of the wings comes from the contraction of the large ------------muscles:
a) Pectoral
b) pelvic
c) Both
83. Shaft and Barbules are the parts of bird’s:
a) Neck
b) Feather
c) Mouth
84. ------------- are the amniotes that have hairs and produce milk:
a) Reptiles
b) Mammals
c) Dipnoi
85. Mammals belong to the group of amniotes that called:
a) Anapsids
b) Synapsids
c) Diapsids
86. Mammals have the _________ major lineages:
a) Two
b) Three
c) Four
b) Eutherians
c) Marsupials
87. Egg laying mammals are:
a) Monotremes