Q1. In which one of the following sets of animals do all four give birth to young ones?
- Lion, bat, whale, ostrich.
- Platypus, penguin, bat, hippopotamus.
- Shrew, bat, cat, kiwi.
- Kangaroo, hedgehog, dolphin, loris.
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Ans-: 4. Kangaroo, hedgehog, dolphin, loris.
Q2. Radula is found in:
- Pila sp.
- Chiton sp.
- Lamellidens sp.
- Pinctada sp.
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Ans-: 1. Pila sp.
Q3. A larval stage occurs in the life history of all members of the group:
- Frog, lizard and cockroach.
- Ascaris, housefly and frog.
- Housefly, earthworm and mosquito.
- Butterfly, frog and mosquito.
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Ans: 4. Butterfly, frog, and mosquito.
Q4. Blood of Pheretima is:
- Blue with haemocyanin in corpuscles.
- Blue with haemocyanin in plasma.
- Red with haemoglobin in corpuscles.
- Red with haemoglobin in plasma.
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Ans: 4. Red with haemoglobin in plasma.
Q5. Fish which can be used in biological control of mosquitoes/ larvicidal fish is:
- Eel.
- Carp.
- Catfish.
- Gambusia.
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Ans: 4. Gambusia.
Q6. The flightless bird Cassowary is found in:
- Mauritius.
- Australia.
- New Zealand.
- Indonesia.
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Ans: 2. Australia.
Q7. Jelly fish belongs to class:
- Hydrozoa.
- Scyphozoa.
- Anthozoa.
- None of these.
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Ans: 2. Scyphozoa.
Q8. Gorilla, chimpanzee, monkeys and human belong to the same:
- Species.
- Genus.
- Family.
- Order.
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Ans: 4. order.
Q9. The clam nervous system is composed of:
- Labial palps.
- One pair of ganglia.
- Two pairs of ganglia.
- Three pairs of ganglia.
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Ans: 4. Three pairs of ganglia.
Q10. How many chambers are there in the heart of a crocodile?
- 2
- 3
- 4
- 5
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Ans: 3. 4
Q11. Star fish belongs to:
- Asteriodea.
- Ophiuroidea.
- Holothuroidea.
- Crinoidea.
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Ans: 1. Asteriodea.
Q12. Solenocytes and metanephridia are excretory organs of:
- Coelenterata and Mollusca.
- Platyhelminthes and Annelida.
- Aschelminthes and Annelida.
- Annelida and Arthropoda.
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Ans: 2. Platyhelminthes and Annelida.
Q13. Which one occurs in Echinodermata?
- Bilateral symmetry.
- Radial symmetry.
- Porous body.
- Soft skin.
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Ans: 2. Radial symmetry.
Q14. Given below are the pairs of animals and the phylum to which they belong. Which out of these is not a matching
pair and why?
- Pila (Apple snail) – Mollusca
- Anopheles (Mosquito) – Arthropoda
- Pheretima (Earthworm) – Aschelminthes
- Taenia (Tapeworm) – Platyhelminthes
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Ans: 3. Pheretima (Earthworm) – Aschelminthes.
Expalnation:
Pheretima (earthworm) – Aschelminthes is not a matching pair because Pheretima belongs to phylum Annelida and not to
Aschelminthes.
Q15. The long bones are hollow and connected by air passage. They are the characteristics of:
- Aves.
- Mammals.
- Reptilia.
- Land vertebrates.
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Ans: 1. Aves.
Q16. Apart from excretion what is another major function of kidneys in mammals?
- Reproduction.
- Blood filtration.
- Separation of waste.
- Osmoregulations.
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Ans: 1. Osmoregulations.
Q17. Which of the following pairs of animals has non glandular skin.
- Snake and Frog.
- Chameleon and Turtle.
- Frog and Pigeon.
- Crocodile and Tiger.
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Ans: 2. Chameleon and Turtle.
Explanation:
Chameleon and turtle belong to class-Reptilia and possess dry and non-glandular skin with scales, Frog, pigeon and tiger possess
modifications in their skin according to adaptations in their respective habitats.
.
Q18. Which one of the following is an exotic Indian fish?
- Catla catla.
- Heteropneustes fossilis.
- Cyprinus caprio.
- Labeo rohita.
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Ans: 3. Cyprinus caprio.
Q19. In which of the following organisms sexes are not separate?
- Ascaris.
- Cockroach.
- Pheretima.
- Pila.
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Ans: 3. Pheretima.
Q20. Phylum that doesn’t have a true coelom is:
- Platyhelminthes.
- Annelida.
- Echinoderms.
- Arthropoda.
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Ans: 1. Platyhelminthes.
Q21. Which one of the following sets of animals share a four chambered heart?
- Amphibian, Reptiles, Birds.
- Crocodiles, Birds, Mammals.
- Crocodiles, Lizards, Turtles.
- Lizards, Mammals, Birds.
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Ans: 2. Crocodiles, Birds, Mammals.
Explanation:
Amphibians have three-chambered heart, while reptiles have incomplete four-chambered heart (except crocodiles). Crocodiles, birds
and mammals have complete, four-chambered heart.
Q22. Trachea of cockroach and mammal are similar in having:
- Paired nature.
- Non-collapsible walls.
- Ciliated inner lining.
- Origin from head.
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Ans: 2. Non-collapsible walls.
Q23. Given below are types of cells present in some animals. Which of the following cells can differentiate to perform
different functions?
- Choanocytes.
- Interstitial cells.
- Gastrodermal cells.
- Nematocytes.
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Ans: 2. Interstitial cells.
Explanation:
Interstitial cells can differentiate to perform different functions. Choanocytes are the characteristic cells of Porifera. Gastrodermal cells
and Nematocytes are found in Hydra.
Q24. Point out a non-parasite:
- Tapeworm.
- Mosquito.
- Leech.
- Sea anemone.
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Ans: 4. Sea anemone
Q25. Which of the following is a pseudocoelomate?
- Platyhelminthes.
- Aschelminthes.
- Mollusca.
- Hemi-chordates.
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Ans: 2. Aschelminthes.
Explanation:
Aschelminthes is a pseudocoelomate
Q27. Which one of the following animals possesses nerve cells but no nerves?
- Hydra.
- Tapeworm.
- Earthworm.
- Frog’s tadpole.
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Ans: 1. Hydra.
Q28. How many chambers are there in the heart of reptiles?
- 2
- 3
- 4
- 5
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Ans: 2. 3
Q29. An egg laying mammal is:
- Kangaroo.
- Platypus.
- Koala.
- Whale.
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Ans: 2. Platypus.
Q30. Bladderworm/cysticercus is the larval stage of:
- Tapeworm.
- Roundworm.
- Pinworm.
- Liver fluke.
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Ans: 1. Tapeworm.
Q31. Fluke infections are diseases of the _ in humans.
- Blood.
- Bile.
- Digestive tract.
- Lungs.
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Ans: 3. Digestive tract.
Q32. Which one of the following is not a living fossil?
- King crab.
- Sphenodon.
- Archaeopteryx.
- Peripatus.
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Ans: 3. Archaeopteryx.
Q33. Which kind of symmetry occurs in sea anemone?
- Bilateral.
- Radial.
- Asymmetry.
- None of these.
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Ans: 2. Radial.
Q34. Which one of the following is NOT a characteristic of phylum Annelida?
- Ventral nerve cord.
- Pseudocoelom.
- Segmentation.
- Closed circulatory system.
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Ans: 2. Pseudocoelom.
Q35. Which of the following organisms is having a two-chambered heart?
- Frog
- Cobra
- Shark
- Platypus.
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Ans: 3. Shark.
Q36. Bed Bugs contribute to the spread of:
- Typhoid.
- Yellow fever.
- Typhus.
- Trench fever.
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Ans: 3. Typhus.
Q37. Which type of excretion is present in fishes?
- Ammonotelic.
- Ureotelic.
- Urecotelic.
- None of these.
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Ans: 1. Ammonotelic.
Q38. What is the name of excretory organ in arthropoda?
- Flame cells.
- Nephridiano.
- Malpighian tubules.
- Kidneys.
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Ans: 3. Malpighian tubules.
Q39. Ascaris lumbricoides infection occurs through:
- Sole of uncovered feet.
- Contaminated cooked measly pork.
- Improperly cooked measly pork.
- From air through inhalation.
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Ans: 2. Contaminated cooked measly pork.
Q40. Earthworms are:
- Useful.
- Harmful.
- More useful than harmful.
- More harmful.
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Ans: 1. Useful.