Biology MCQs

31. Excretion in flatworms is done by__
[A] protonephridia
[B] flame cells
[C] green glands
[D] malpighian tubules

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32. Cuttlefish is a member of which of the following?
[A] Mollusca
[B] Echinodermata
[C] Pisces
[D] Amphibia

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33. Which of the following is rat-fish?
[A] Salmons
[B] Lamprey
[C] Sharks
[D] Chimeras

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34. How many systematic arteries are there in reptiles?
[A] 1
[B] 2
[C] 3
[D] 4

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35. The order Cetacea includes which of the following group?
[A] Monkey, gorilla, and man
[B] Cat, dog, wolf, and lion
[C] Whale, dolphin, and porpoise
[D] Hippopotamus, pig and giraffe

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36. How is leather obtained from animals?
[A] Fracking
[B] Stunning
[C] Tanning
[D] All of these

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37. Which of the following helps in clotting and clotting of blood?
[A] Lymphocytes
[B] Monocytes
[C] Thrombocytes
[D] Granulocytes

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38. Urine that contains glucose is usually an indicator of:
[A] Diabetes
[B] Bacterial infection
[C] Kidney stones
[D] Muscle atrophy

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39. What is the enzyme that breaks down lactose?
[A] Lipase enzymes
[B] Pepsin
[C] Amylase
[D] Lactase

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40. What is the function of Sertoli cells in the male reproductive system?
[A] help in the erection of the penis
[B] secrete male sex hormones
[C] carrier of man’s genes
[D] provide nutrition to germ cells

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