BIOLOGY 2020 UTME PAST QUESTION

1. Feeding in fungus is by___

A. Predation
B. Saprophytism
C. Mutualism
D. Photosynthesis

2. Which of the following are thallophyte.

A. Algae and fungi
B. Algae and lichen
C. Liverwort and moss
D. Algae and moss

3. This diagram represents the asexual reproduction in yeast, it is known as

A. Binary fission
B. Multiple fission
C. Fragmentation
D. Budding

4. Flame cell is an excretory organ in

A. Flatworm
B. Roundworm
C. Earthworm
D. Bloodworm

5. Mitochondria function directly in

A. Respiration
B. Blood clothing
C. Photosynthesis
D. Protection against diseases

6. (i) fingerprint (ii) ability to roll the tongue (iii) weight (iv) Blood group Which of these is/are examples of discontinuous variation?

A. i, ii &iii
B. i, ii &iv
C. iii only
D. ii only

7. A mother is a carrier of haemophilia while the father has the trait. What is the probability of their offspring having haemophilia.

A. 0%
B. 25%
C. 50%
D. 100%

8. X Chromosome in females carries from

A. Both parent
B. One parent
C. The father
D. The mother

9. Which of the following is an advantage of inbreeding?

A. To produce disease resistance varieties
B. Conversation of desirable genes
C. Conservation of undesirable genes
D. To increase the mental stability of offspring

10. Which of the following blood group can have homozygous and heterozygous form?

A. A and B
B. AB and O
C. A and AB
D. A and O

11. Why should a pregnant woman avoid taking excess drugs?

A. It could cause damage to the organs of the foetus
B. It could damage the placenta, putting the baby’s life at risk
C. It could increase the risks of miscarriage
D. All of the above

12. The olfactory lobe is connected to which organ?

A. Mouth
B. Nose
C. Ear
D. Tongue

13. Which of the following is the deficiency diseases of vitamin

A. Pellagra
B. Beriberi
C. Scurvy
D. Night blindness

14. The theory of use and disuse was propounded by

A. Jean Lamarck
B. Gregor Mendel
C. Charles Darwin
D. Carvon linne

15. Which vertebra bears the weight of the body

A. Lumbar
B. Cervical
C. Sacral
D. Thoracic

16. The blood vessel that carries oxygenated blood to the kidney is

A. Renal artery
B. Renal vein
C. Pulmonary artery
D. Hepatic portal vein

17. The end product of proten digestion is

A. Amino acid
B. Glucose
C. Fatty acid
D. Glycerol

18. The human heart is a/an

A. Cell
B. Tissue
C. Organ
D.System

19. Which of the following factors does not affect aquatic organisms?

A. Soil PH
B. Temperature
C. Rainfall
D. Oceans

20. The soil type with the highest capillary action is

A. Loamy soil
B. Clay soil
C. Sandy soil
D. Laterite

21. The intermediate host of schistosoma action is

A. Snail
B. Human
C. Fish
D. Pork

22. Drinking of contaminated water could cause

A. Cholera and typhoid
B. Syphilis gonorrhea
C. Cold and flu
D. Herpes and poliomyelitis

23. The removal of petal in flower reduces the chance of

A. Fertilization
B. Pollination
C. Photosynthesis
D. Placentation

24. Evolutionary trend can be estimated through

A. Carbon dating
B. Inbreeding
C. Outbreeding
D. Pollination

25. The brown head in Agama lizard is an adaptation for

A. Offence
B. Defence
C. Securing mate
D. Temperature regulation

26. Which of the castes of the honey bees defend the territory?

A. Drones
B. Queens
C. Workers
D. A&B

27. The xylem tissue is responsible for

A. Production of food
B. Transportation of manufactured food to all plants part
C. Transportation of water and mineral salt
D. Transpirations

28. The specific role of a species coupled with its location is known as its

A. Habitat
B. Niches
C. Trophic level
D. Biotic community

29. If 200 ants are found in a field with a total land area of 100m2, what is the population density of the ants?

A. 0.2
B. 0.5
C. 2.0
D. 20000

30. The instrument above is for measuring

A. Direction of wind
B. Speed of the wind
C. Temperature
D. Air pressure,

31. Which of the following organism is not a social insects?

A. Termites
B. Ants
C. Bees
D. Grasshopper

32. The opening of the guard cells of the epidermis in plants is by the process of

A. Osmosis
B. Diffusion
C. Transpiration
D. Active transport

33. The structure for excretion in insects is

A. Trachea
B. Malphigian tubule
C. Nephridium
D. Lung books

34. The following are abiotic components of the ecosystem except

A. Topography
B. Wind
C. Water
D. Bacteria

35. A sudden change in the genetic makeup of an organism is known as

A. Allele
B. Genotype
C. Phenotype
D. Mutation

36. The organelle which eliminates water from the body of the protozoan in the

A. Plasma membrane
B. Contractile vacuole
C. Nucleus
D. Cell wall

37. The appendicular skeleton is composed of the

A. Skull and vertebral column
B. Ribcage and sternum
C. Vertebrae & ribs
D. Limbs and limbs girdle

38. The vector of the sleeping sickness disease parasite is

A. Cockroach
B. Mosquito
C. Blackfly
D. Tsetse fly

39. Excessive bleeding from an injury may be due to lack of vitamin

A. A
B. B
C. C
D. K

40. Biosphere is best described as

A. All part of the earth where life exist
B. The – living parts of an ecosystem
C. All components of an ecosystem
D. All the members of a particular species