UTME CBT FREE Practice Test – Biology (Questions with Answers and Explanations)

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  1. You are to attempt 40 Random Objectives Questions ONLY for  30 minutes.
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1. 


Which of the following is an aboreal organism?

A. Elephant.   B. Fish.   C. Antelope.   D. Bird.

2. 


The part of the mammalian ear responsible for the maintenance of balance is the ______

A. perilymph   B. ossicles   C. cochlea   D. pinna.

3. 


Fertilization in mammals occurs in ______

A. cervix.    B. oviduct.    C. uterus.     D. vagina.    E. vulva.

4. 


The interaction of a community of organisms with its abiotic environment constitutes

A. an ecosystem    B. a microhabitat    C. a niche    D. a food chain.

5. 


Ability of the human eye to focus images accurately on the retina is called

A. astigmatism     B. myopia.      C. adjustment.      D. accommodation

6. 


Drancunculiasis can be contacted through ______

A. bathing in contaminated water
B. bites of blackfly
C. eating contaminated food
D. drinking contaminated water.

7. 


Which of the following statements about human blood groups is not true?

A. A is dominant over B      B. O is recessive      C. B is dominant over O      D. A and B are co-dominant

8. 


Partially digested food ready to leave the stomach is referred to as _______

A. chyme     B. curd     C. glycogen      D. paste

9. 


Which of the following organisms is an endo-parasite?

A. Tapeworm    B. Flea    C. Tick    D Aphid

10. 


The gland that is found just below the hypothalamus is the _______

A. Pituitary   B. Thyroid   C. Parathyroid   D. Adrenal

11. 


The crossing of individuals of the same species with different genetic characters is _____

A. non-disjunction    B. inbreeding     C. cross breeding   D. polygenic inheritance

12. 


Which of the following components make up an ecosystem?

A. Decomposers, animals and non-living factors
B. Living and non-living factors
C. Plants and non-living factors
D. Plants, decomposers and non-living factors

13. 



The diagram represents a/an ______

A. clavicle.    B. humerus.    C. radius.     D. scapula

14. 


Which of the following is the most complex according to their cellular level of organization?

A. Heart.   B. Hair.   C. Euglena.   D. Hydra.

15. 


Which of the following structures is adapted for feeding in a bird of prey?

A. Big beaks and strong feet
B. Pointed beak and strong claws
C. Hooked beak and sharp claws
D. Smooth beak and strong claws

16. 


The diagram below is an illustration of a crocodile.

Which of the labelled parts enable the animal to stay under water most of the time?

A. l, IV and V     B. I, II and V    C. I, III and IV    D. lll, IV and V

17. 


Blood platelets are important because they _______

A. are amoeboid and nucleated
B. produce antitoxins
C. produce antibodies
D. release thrombin for blood clotting.

18. 


Which of the following is a nitrogen-fixing blue-green algae soil?

A. Rhizobium.    B. Nitrosomonas.    C. Clostridium.    D. Anabaena.

19. 


An example of a parasitic protozoan is ______

A. Euglena   B. Chamydomonas   C. Paramecium   D. Plasmodium

20. 


Which of the following natural resources is most readily available to all organisms?

A. Oil    B. Water    C. Air    D. Food

21. 


Which of these animals is an invertebrate?

A. Lizard    B. Rat    C. Starfish    D. Tilapia fish

22. 



Bowman’s capsules are located in the part labelled ______

A. 1    B. 2    C. 3    D. 4    E. 5

23. 


Which of the following distinguishes a butterfly from a moth?

A. They have similar antennae
B. The abdomen of moth is fatter than that of butterfly
C. The wings of butterfly rest horizontally but those of moth rest vertically
D. Both are active during the day

24. 


An example of a filter feeding animal is _____

A. whale    B. mosquito    C. shark    D. butterfly.

25. 


The vector that transmits trypanosome is the ______

A. blackfly.     B. cockroach.     C. housefly.     D. tsetsefly

26. 


If calcium is deficient in food this may cause ______

A. anaemia    B. retarded growth    C. sterility    D. goitre

27. 


I. Test tube containing cane sugar and water
II. Test tube containing cane sugar and dilute acid
III. Test tube containing cane sugar and its degrading enzyme

In which of the test tubes will glucose be detected after complete hydrolysis?

A. I only.   B. I, II and III.   C. I and II only.   D. II and III only.

28. 


Study the diagram below:


The structure labelled I is _____

A. a pitcher.     B. an onion.     C. a flower.     D. a tendril

29. 


Which of the following traits is not inheritable? Ability to _____

A. taste FTC.    B. roll the tongue.    C. move the ear.    D. roil the eyeball

30. 


Physiological adaptation to very dry condition in animals demonstrates _______

A. Hibernation   B. Aestivation    C. Rejuvenation   D. Xeromorphism

31. 


Adaptive radiation is illustrated in _______

A. modified insect mouthparts.
B. dentition in mammals.
C. wings in birds and bats.
D. appendages in insects.

32. 


The coiled mouthparts of a butterfly is called ______

A. labrum.    B. palps.    C. proboscis.    D. rostrum.

33. 


Which of the following processes removes carbon (IV) oxide from the atmosphere?

A. Burning fuels    B. Putrefaction    C. Photosynthesis    D: Respiration in plants

34. 


During the manufacture of food by plants, which of the following organisms use energy from the sun?

A. Nitrospmonas sp.   B. Nitrobacter sp.   C. Anabaena   D. Sulfur bacteria

35. 


In an angiosperm leaf, the xylem is ______

A. in separate bundles from the phloem.
B. surrounded by the phloem
C. above the phloem
D. around the phloem

36. 


Water in plants is removed as water vapour through the process of _______

A. diffusion.   B. osmosis.   C. evaporation.   D. transpiration.

37. 


The male reproductive organ of a flower is the _______

A. Petal   B. Sepal   C. Carpel   D. Stamen

38. 


The hereditary material in a cell is known as ______

A. ADP    B. DNA    C. RNA    D. ATP

39. 


The part of the brain responsible for peristalsis is the _____

A. olfactory lobe.   B. medulla oblongata.   C. hypothalamus.   D. thalamus.

40. 


The main difference between a seed and a fruit is that a fruit

A. is large while a seed is small.
B. has two scars while a seed has one.
C. is pigmented while a seed is not.
D. can be dispersed by animals while a seed cannot


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