2015 JAMB BIOLOGY PAST QUESTIONS AND ANSWERS Leave a Comment / Jamb Biology / By Jamb Tutor Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. 0% 0 votes, 0 avg Created by Jamb TutorJamb Biology 2015 JAMB BIOLOGY PAST QUESTIONS AND ANSWERS 1 / 48 Category: Jamb Biology 2015 1. Which of the following has the most primitive respiratory system? a) insect b) fish c) snail d) mouse Compares the complexity of respiratory systems across different organisms. 2 / 48 Category: Jamb Biology 2015 2. One adaptation shown by hydrophytes in freshwater habitats is the a) waxy cuticle on shoot surface b) poor development of roots and xylem tissues c) well-developed roots and supporting system d) leaves reduced to spines Highlights key adaptations of plants living in aquatic environments. 3 / 48 Category: Jamb Biology 2015 3. Which of the following use diffusion as the principal method of gaseous exchange? a) grasshopper b) rat c) lizard d) earthworm Examines organisms that rely primarily on diffusion for respiration. 4 / 48 Category: Jamb Biology 2015 4. The theory which supports the view that large muscles developed by an athlete will be passed on to offspring was proposed by a) Mendel b) Darwin c) Lamarck d) Pasteur Focuses on inheritance theories in biology. 5 / 48 Category: Jamb Biology 2015 5. The chromosomes of members of the kingdom Monera are within the a) nucleoplasm b) nucleus c) nucleolus d) cytoplasm Tests knowledge of cellular structures in prokaryotic organisms. 6 / 48 Category: Jamb Biology 2015 6. The mangrove swamp in Nigeria is restricted to the a) Sahel savanna b) Guinea savanna c) Tropical rainforest d) Sudan savanna Covers the distribution of ecosystems across Nigerian geographical zones. 7 / 48 Category: Jamb Biology 2015 7. The pancreas secretes enzymes for the digestion of a) fats, proteins, and carbohydrates b) fats, vitamins, and cellulose c) fats, carbohydrates, and vitamins d) proteins, cellulose, and minerals Reviews the digestive enzymes produced by the pancreas and their target nutrients. 8 / 48 Category: Jamb Biology 2015 8. The causative agent of bird flu is a a) protozoan b) virus c) bacterium d) fungus Tests knowledge of pathogens responsible for specific diseases. 9 / 48 Category: Jamb Biology 2015 9. A water medium is necessary for fertilization in a) conifers b) angiosperms c) ferns d) fungi Analyzes reproductive requirements of various plant groups. 10 / 48 Category: Jamb Biology 2015 10. An example of a sex-linked trait is the a) color of the skin in humans b) ability to roll the tongue c) possession of facial hair in adult humans d) ability to grow long hair in females Focuses on understanding of sex-linked traits in humans. 11 / 48 Category: Jamb Biology 2015 11. In which of the following Nigerian states can montane vegetation be found? a) Bauchi b) Plateau c) Taraba d) Enugu Identifies the specific geographic locations where montane vegetation is prevalent in Nigeria. 12 / 48 Category: Jamb Biology 2015 12. Which of the following is true of cloning? a) it is welcomed as an ethically and normally sound science b) it involves the asexual multiplication of the tissues of the original organism c) the clone is similar to but not exactly like the original organism d) only one cell of the original organism is needed to initiate the process Discusses the process and ethical aspects of cloning in biology. 13 / 48 Category: Jamb Biology 2015 13. The process of shedding the exoskeleton of an arthropod is known as a) ecdysis b) in star formation c) metamorphosis d) osmosis Tests knowledge of the life cycle and growth processes in arthropods. 14 / 48 Category: Jamb Biology 2015 14. Which of the following is a major cause of constipation in humans? a) lack of roughage b) vitamin B c) vitamin E d) lack of salts Discusses the dietary factors that contribute to digestive health. 15 / 48 Category: Jamb Biology 2015 15. In mammals, the organ directly on top of the kidney is the a) pancreas b) thyroid gland c) adrenal gland d) prostate gland Covers the anatomical position of organs in the mammalian body. 16 / 48 Category: Jamb Biology 2015 16. An accurate identification of a rapist can be carried out by conducting a a) RNA analysis b) blood group test c) behavioral traits test d) DNA analysis Highlights forensic methods used in criminal investigations. 17 / 48 Category: Jamb Biology 2015 17. An example of a fish that aestivates is a) croaker b) lungfish c) shark d) catfish Focuses on animal behavior adaptations such as aestivation in fish. 18 / 48 Category: Jamb Biology 2015 18. The opening and closing of the stoma are regulated by a) respiration b) osmosis c) diffusion d) transpiration Discusses the mechanisms controlling stomatal movement in plants. 19 / 48 Category: Jamb Biology 2015 19. Which of the following is common to the mosquito, housefly, and blackfly? a) they are parasites of man b) their immature stages are aquatic c) they undergo complete metamorphosis d) their adults have two pairs of wings Examines life cycle characteristics shared by certain insect species. 20 / 48 Category: Jamb Biology 2015 20. The organs that will be most useful to giant African rats in finding their way in underground habitats are the a) nostrils b) eyes c) vibrissae d) tails Highlights sensory adaptations for animals living in dark environments. 21 / 48 Category: Jamb Biology 2015 21. A crucible of 5g weighed 10g after filling with fresh soil. It is then heated in an oven at 100°C for 1 hour. After cooling in a desiccator, the weight was 8g. The percentage of water in the soil is a) 0.8 b) 0.2 c) 0.4 d) 0.6 Tests understanding of calculating moisture content in soil samples. 22 / 48 Category: Jamb Biology 2015 22. The waste product of plants used in the conversion of hide to leather is a) alkaloid b) resin c) tannin d) gum Focuses on plant-based materials involved in traditional leather tanning. 23 / 48 Category: Jamb Biology 2015 23. The correct sequence of the movement of urea during formation is a) glomerulus – Bowman's capsule – convoluted tubule – Henle's loop – collecting tubule b) convoluted tubule – glomerulus – Henle's loop – Bowman's capsule – collecting tubule c) glomerulus – Bowman's capsule – convoluted tubule – Henle's loop collecting tubule d) convoluted tubule – Bowman's capsule – Henle's loop – glomerulus – collecting tubule Reviews the stages of urine formation within the nephron. 24 / 48 Category: Jamb Biology 2015 24. In lizards, the lowering of the gular fold is used to a) defend their territory b) attract mates c) frighten enemies d) catch insects Discusses specific behaviors in reptiles related to communication and mating. 25 / 48 Category: Jamb Biology 2015 25. The photosynthetic pigments include a) chloroplast and cytochromes b) melanin and hemoglobin c) chlorophyll and carotenoids d) carotenoids and hemoglobin Identifies pigments involved in photosynthesis. 26 / 48 Category: Jamb Biology 2015 26. The highest level of ecological organization is the a) ecosystem b) niche c) biosphere d) population Tests knowledge of ecological hierarchy and organization levels. 27 / 48 Category: Jamb Biology 2015 27. A biotic factor which affects the distribution and abundance of organisms in a terrestrial habitat is a) pH b) competition c) temperature d) light Discusses the biotic influences on species distribution in an ecosystem. 28 / 48 Category: Jamb Biology 2015 28. The eye defect that arises because the cornea is not curved smoothly is a) astigmatism b) short-sightedness c) long-sightedness d) presbyopia Explains the causes of specific eye defects related to corneal shape. 29 / 48 Category: Jamb Biology 2015 29. Which of the following is an example of parasitism? a) a squirrel living in an abandoned nest of a bird b) mistletoe growing on an orange tree c) fungi growing on a dead tree branch d) cattle egrets taking tasks from the body of cattle Differentiates between symbiotic relationships in ecosystems. 30 / 48 Category: Jamb Biology 2015 30. The increasing order of the particle size in the following soil types is a) sand – clay – gravel b) clay – silt – sand – gravel c) silt – clay – sand – gravel d) clay – sand – silt – gravel Focuses on soil composition and relative particle sizes. 31 / 48 Category: Jamb Biology 2015 31. Stunted growth and poor root development are a result of a deficiency in a) phosphorus b) calcium c) sulfur d) iron Tests knowledge on nutrient deficiencies affecting plant growth and development. 32 / 48 Category: Jamb Biology 2015 32. The cell organelle solely responsible for respiration is the a) nucleus b) nucleolus c) endoplasmic reticulum d) mitochondrion Identifies the organelle involved in cellular respiration. 33 / 48 Category: Jamb Biology 2015 33. The organelle responsible for heredity is a) IV b) I c) II d) III Highlights the cell component carrying genetic information. 34 / 48 Category: Jamb Biology 2015 34. The process illustrated is a) gametogenesis b) sexual reproduction in Rhizopus c) sexual reproduction in Spirogyra d) sporulation Refers to specific reproductive processes in certain organisms. 35 / 48 Category: Jamb Biology 2015 35. The structure labeled I is the a) zygospore b) conidiophore c) sporangium d) hypha Focuses on identifying structures involved in fungal reproduction. 36 / 48 Category: Jamb Biology 2015 36. The organelle responsible for sexual reproduction is a) IV b) I c) II d) III Tests knowledge on the role of specific organelles in reproductive functions. 37 / 48 Category: Jamb Biology 2015 37. The part labeled IV is responsible for a) respiration b) ingestion c) locomotion d) osmoregulation Covers the function of certain structures in cellular processes. 38 / 48 Category: Jamb Biology 2015 38. The part labeled I is the a) pulmonary artery b) bicuspid valve c) aorta d) vena cava Focuses on identifying parts of the circulatory system in a labeled diagram. 39 / 48 Category: Jamb Biology 2015 39. Oxygenated blood is pumped to the entire body from the part labeled a) IV b) I c) II d) III Identifies the structure in the heart responsible for distributing oxygenated blood. 40 / 48 Category: Jamb Biology 2015 40. The experiment demonstrates a) hydrotropism b) phototropism c) thigmotropism d) hydrotropism Identifies the type of tropism demonstrated in a plant experiment. 41 / 48 Category: Jamb Biology 2015 41. The part marked I will contain a high concentration of a) ethylene b) abscisic acid c) auxin d) ascorbic acid Tests knowledge of plant hormones associated with growth responses. 42 / 48 Category: Jamb Biology 2015 42. The breeding posture illustrated in the diagram is known as a) reproductive swimming b) amplexus c) mating d) courtship Covers knowledge of specific breeding behaviors in animals. 43 / 48 Category: Jamb Biology 2015 43. The diagram shows that the organisms are a) viviparous b) hermaphrodite c) ovoviviparous d) oviparous Focuses on the reproductive classification of organisms based on egg-laying and live birth. 44 / 48 Category: Jamb Biology 2015 44. Insulin is produced by the endocrine organ labeled a) I b) IV c) III d) II Tests knowledge of endocrine organs responsible for insulin production. 45 / 48 Category: Jamb Biology 2015 45. Which of the following will be true of dog II which lost its tail in an accident if it mates with dog III? a) all its offspring will be born without tails b) 3/4 of its offspring will be born without tails c) none of its offspring will be born without a tail d) 1/4 of its offspring will be born without tails Addresses heredity and the principle that acquired traits are not inherited. 46 / 48 Category: Jamb Biology 2015 46. If the dogs are offspring of a monohybrid cross and the gene G for grey head is dominant over allele g, the individual whose genotype is likely to be gg is a) I b) IV c) III d) II Tests understanding of Mendelian genetics and dominant-recessive inheritance patterns. 47 / 48 Category: Jamb Biology 2015 47. The type of protective adaptation exhibited by the animal is a) flash coloration b) countershading colouration c) warning colouration d) disruptive colouration Focuses on identifying types of protective coloration and adaptation strategies in animals. 48 / 48 Category: Jamb Biology 2015 48. The structure labeled I is a) tactile b) radiosensitive c) photosensitive d) chemoreceptive Assesses knowledge of sensory adaptations in animals. Your score is The average score is 0% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Anonymous feedback Send feedback
