JAMB - Biology (2016)

• 1

  Which of the following conditions is NOT necessary for photosynthesis to take place?

  回答

  (C)

  Carbon(II)oxide
• 2

  The insects in which the maxillae are modified into a long coiled proboscis is

  回答

  (B)

  butterfly
• 3

  When a cell is placed in solution and the size of the cell increases, the concentration of solution is said to be

  回答

  (C)

  hypotonic
• 4

  Which of the following plant hormone is responsible for ripening of fruits?

  回答

  (C)

  Ethylene
• 5

  The ability of a living organism to detect and respond to changes in the environment is referred to as

  回答

  (C)

  irritability
• 6

  An example of an endospermous seed is

  回答

  (D)

  maize grain
• 7

  Which of the following theories was NOT considered by Darwin in his evolutionary theory?

  回答

  (C)

  use and disuse
• 8

  Which of the following protects the essential parts of the flower at bud stage?

  回答

  (B)

  Sepals
• 9

  which of the following is an agent of a sexually transmitted disease?

  回答

  (C)

  Treponema pallidum
• 10

  Which of the following animals has homodont dentition?

  回答

  (C)

  Lizard
• 11

  The movement of blood between the heart and all other parts of the body besides the lung is known as

  回答

  (A)

  systemic circulation
• 12

  If the cross of a red-flowered plant with a white flowered plant produces a pink flowered plant, this is an example of

  回答

  (B)

  incomplete dominance
• 13

  The largest amount of yolk is found in the egg of

  回答

  (D)

  aves
• 14

  Fibrinogen and prothrombin play important roles in the

  回答

  (B)

  clotting of blood
• 15

  The pathogen that cause smallpox is

  回答

  (D)

  poxvirus
• 16

  The vector for the malaria parasite is a

  回答

  (B)

  female Anopheles mosquito
• 17

  Which of the following pairs are social insects?

  回答

  (D)

  Termite and bee
• 18

  Which of the following is NOT a method of conserving wild life?

  回答

  (A)

  Indiscriminate poaching
• 19

  The importance of the mouth-brooding behaviour in Tilapia is that it

  回答

  (B)

  affords protection from predation for the young fish
• 20

  The type of asexual reproduction that is common to both Paramecium and Protists is

  回答

  (D)

  fission
• 21

  The micro-organisms that causes Typhoid disease is

  回答

  (B)

  Salmonella typhi
• 22

  A collection of population of all living organisms that exist in a habitat is referred to as

  回答

  (C)

  community
• 23

  The theory of use and disuse of organs was promulgated by

  回答

  (C)

  Jean Lamarck
• 24

  The theory of natural selection was postulated by

  回答

  (C)

  Charles Darwin
• 25

  The movement response of a cockroach away from a light source is

  回答

  (A)

  negative phototaxism
• 26

  Which of the following can cause shrinkage of living cells?

  回答

  (D)

  Hypertonic solution
• 27

  The ability of chameleon to change its colour rapidly is an adaptation for

  回答

  (D)

  escaping detection
• 28

  The function of the red head in male Agama lizards is to

  回答

  (C)

  attract female lizards for mating purposes
• 29

  The activity of ptyalin is likely to decrease with an increase in the concentration of

  回答

  (D)

  acid
• 30

  Seed plants are divided into

  回答

  (C)

  angiosperms and gymnosperms
• 31

  The adaptive importance of the nuptial flight from termite colonies is to

  回答

  (B)

  disperse the reproductives in order to establish new colonies
• 32

  The sequence of the one-way gaseous exchange mechanism in a fish is

  回答

  (B)

  mouth ⇢ gills ⇢ operculum
• 33

  In the nitrogen cycle, the nitrates in the soil are converted to atmospheric nitrogen by

  回答

  (D)

  denitrifying bacteria
• 34

  The relationship between a termite and the protozoam in its intestine is described as

  回答

  (C)

  symbiosis
• 35

  Exo-erythrocytic phase of the life cycle of malaria parasite occurs in the

  回答

  (A)

  liver of humans
• 36

  Which of the following organs regulates the levels of water. salts, hydrogen ions, and urea in the mammals?

  回答

  (A)

  Kidney
• 37

  The rate of transpiration is NOT affected by

  回答

  (A)

  the weight of the stomata pores
• 38

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

  回答

  (A)

  croos breeding
• 39

  The hereditary characters in plants and animals are located on the

  回答

  (C)

  chromosome
• 40

  The arrangement of ovules attached to the sides of a syncarpous ovary with a single chamber is referred to as

  回答

  (C)

  parietal placentation
• 41

  When sickle cell carrier marries a normal woman, the probability of them having a normal offspring is

  回答

  (C)

  0.5
• 42

  In which of the following groups of vertebrates is parental care mostly exhibited?

  回答

  (D)

  Mammalia
• 43

  An example of a non-bio degrable pollutants is

  回答

  (C)

  ceramics
• 44

  The bacteria that is found in the root nodules of leguminous plants is

  回答

  (B)

  rhizobium
• 45

  Which of these organisms partly digest its food extracellularly?

  回答

  (C)

  Spider