| 1. | Which of the following are energy foods ? | |
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Water and roughage
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Vitamins and minerals
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Proteins and mineral salts
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Carbohydrates and fats
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Report Question| 2. | In respiration, air passes through ? | |
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Larynx -> pharynx trachea -> lungs
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Larynx -> nasal cavity’ -> pharynx -> trachea
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Nasal cavity -> pharynx -> larynx -> trachea -> bronchi -> bronchioles
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Pharynx -> nasal cavity -> larynx -> trachea bronchi -> bronchioles
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| 3. | Single circulation, i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by which of the following ? | |
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labeo, chameleon, salamander
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hippocampus, exocoetus, anabas
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whale, dolphin, turtle
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hyla, rana, draco
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| 4. | The contraction and expansion movement of the walls of the food pipe is called ? | |
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digestion
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translocation
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transpiration
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peristaltic movement
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| 5. | In which mode of nutrition an organism de-rives its food from the body of another living organism without killing it ? | |
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Autotrophic nutrition
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Holozoic nutrition
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Saprotrophic nutrition
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Parasitic nutrition
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| 6. | Typical 'lubb-dupp' sounds heard during heartbeat are due to ? | |
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Blood under pressure through aorta
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Closing of semilunar valves
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Closure of bicuspid-tricuspid valves followed by semilunar valves
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Closing of bicuspid and tricupid valves
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| 7. | In mammals, veins differs from arteries in having ? | |
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Carry blood away from heart
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Internal valves
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Deeply present
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Thicker walls
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| 8. | In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body ? | |
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Amphibians only.
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Pisces only.
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Amphibians and reptiles.
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Pisces and amphibians.
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| 9. | What prevents backflow of blood inside the heart during contraction ? | |
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Thin walls of atria.
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Thick muscular walls of ventricles.
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Valves in heart.
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All of the above.
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| 10. | The part of the digestive system where no digestion takes place is ? | |
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mouth
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stomach
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oesophagus
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ileum
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