2016 JAMB Biology Past Questions & Answers

Question 1

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

Accepted Answer

D. escaping detection

Answer

A. obtaining food

Answer

B. attraction mate

Answer

C. communication

Question 2

Which of the following pairs are social insects?

Accepted Answer

D. Termite and bee

Answer

A. Termite and locust

Answer

B. Ants and cockroach

Answer

C. Cockroach and bee

Question 3

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

Accepted Answer

C. Treponema pallidum

Answer

A. Entamoeba histolytica

Answer

B. Salmonella typhi

Answer

D. Clostridium tetani

Question 4

The rate of transpiration is NOT affected by

Accepted Answer

A. the weight of the stomata pores

Answer

B. humidity

Answer

C. temperature

Answer

D. the size of the stomata pores

Question 5

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

Accepted Answer

C. Carbon(II)oxide

Answer

A. ChlorophyII

Answer

B. Light

Answer

D. Carbon(IV)oxide

Question 6

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

Accepted Answer

B. rhizobium

Answer

A. clostridium

Answer

C. nostoc

Answer

D. azotobacter

Question 7

The vector for the malaria parasite is a

Accepted Answer

B. female Anopheles mosquito

Answer

A. female edes mosquito

Answer

C. female culex mosquito

Answer

D. female culex mosquito

Question 8

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

Accepted Answer

C. attract female lizards for mating purposes

Answer

A. scare other males from the territory

Answer

B. warn predators of the distastefulness of the animal

Answer

D. conceal and camouflage the animal from predators

Question 9

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

Accepted Answer

B. butterfly

Answer

A. housefly

Answer

C. mosquito

Answer

D. grasshopper

Question 10

Fibrinogen and prothrombin play important roles in the

Accepted Answer

B. clotting of blood

Answer

A. deamination of proteins

Answer

C. detoxication of substances

Answer

D. storage of vitamins

Question 11

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

Accepted Answer

A. Indiscriminate poaching

Answer

B. Establishment of zoological gardens

Answer

C. Enacting wildlife conservation laws

Answer

D. Establishment of game reserves

Question 12

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

Accepted Answer

D. fission

Answer

A. fragmentation

Answer

B. budding

Answer

C. sporulation

Question 13

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

Accepted Answer

A. croos breeding

Answer

B. polygenic inheritance

Answer

C. non-disjunction

Answer

D. inbreeding

Question 14

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

Accepted Answer

C. community

Answer

A. niche

Answer

B. ecosystem

Answer

D. environment

Question 15

The path followed by air as it passes through the lungs in mammals is

Accepted Answer

C. trachea ⇢ bronchi ⇢  bronchioles ⇢ alveoli

Answer

A. bronchi ⇢ trachea ⇢ alveoli ⇢ bronchioles

Answer

B. bronchioles ⇢  alveoli ⇢ bronchi ⇢ trachea

Answer

D. trachea ⇢ bronchioles ⇢ bronchi ⇢alveoli

Question 16

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

Accepted Answer

C. parietal placentation

Answer

A. free-central placentation

Answer

B. axile placentation

Answer

D. marginal placentation

Question 17

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

Accepted Answer

C. symbiosis

Answer

A. predation

Answer

B. saproplytism

Answer

D. parasitism

Question 18

An example of an endospermous seed is

Accepted Answer

D. maize grain

Answer

A. been seed

Answer

B. cashew nut

Answer

C. cotton seed

Question 19

In which of the following species is the biomass of an individual the smallest?

Accepted Answer

D. Spirogvra sp

Answer

A. Tilapia sp

Answer

B. Agama sp

Answer

C. Bufo sp

Question 20

The pathogen that cause smallpox is

Accepted Answer

D. poxvirus

Answer

A. picornavirus

Answer

B. peramyxovirus

Answer

C. herpesvirus

Question 21

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

Accepted Answer

C. Ethylene

Answer

A. Gibberellins

Answer

B. Abscisic acid

Answer

D. Cytokinins

Question 22

The largest amount of yolk is found in the egg of

Accepted Answer

D. aves

Answer

A. amphibians

Answer

B. pisces

Answer

C. repitles

Question 23

Which of the following animals has homodont dentition?

Accepted Answer

C. Lizard

Answer

A. Rat

Answer

B. Man

Answer

D. Pigeon

Question 24

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

Accepted Answer

B. Sepals

Answer

A. Stamens

Answer

C. Petals

Answer

D. Carpels

Question 25

The theory of use and disuse of organs was promulgated by

Accepted Answer

C. Jean Lamarck

Answer

A. Alfred Wallace

Answer

B. Charles Darwin

Answer

D. Robert Hook

Question 26

Seed plants are divided into

Accepted Answer

C. angiosperms and gymnosperms

Answer

A. monocoty ledons and dicotyledons

Answer

B. tracheophytes and ferns

Answer

D. thallophytes and bryophytes

Question 27

The hereditary characters in plants and animals are located on the

Accepted Answer

C. chromosome

Answer

A. gene

Answer

B. mucleus

Answer

D. cell

Question 28

The micro-organisms that causes Typhoid disease is

Accepted Answer

B. Salmonella typhi

Answer

A. trypanosome gambiense

Answer

C. entamoeba histolytica

Answer

D. plasmodium sp

Question 29

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

Accepted Answer

B. affords protection from predation for the young fish

Answer

A. helps in keeping the young fish warm

Answer

C. helps the fish to live in a social group

Answer

D. provides regurgitated nourishment to the young fish

Question 30

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

Accepted Answer

B. disperse the reproductives in order to establish new colonies

Answer

A. ensure cross-breeding between members of one colony and another

Answer

C. provide abundant food for birds and other animals during the early rains

Answer

D. expel the reproductives so as to provide enough food for other members

Question 31

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

Accepted Answer

B. incomplete dominance

Answer

A. codominance

Answer

C. mutation

Answer

D. linkage

Question 32

Which of the organisms represented are notable agricultural pests?

Accepted Answer

B. I and IV

Answer

A. II and IV

Answer

C. I and III

Answer

D. II and III

Question 33

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

Accepted Answer

D. acid

Answer

A. oxygen

Answer

B. starch

Answer

C. protein

Question 34

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

Accepted Answer

B. mouth ⇢ gills ⇢ operculum

Answer

A. gills ⇢ operculum ⇢ mouth

Answer

C. mouth ⇢ operculum ⇢ gills

Answer

D. operculum ⇢ mouth ⇢ gills

Question 35

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

Accepted Answer

C. irritability

Answer

A. locomotion

Answer

B. taxis

Answer

D. growth

Question 36

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

Accepted Answer

C. use and disuse

Answer

A. variation

Answer

B. survival of the fitest

Answer

D. competition

Question 37

The theory of natural selection was postulated by

Accepted Answer

C. Charles Darwin

Answer

A. Gregor Mendel

Answer

B. Matthias Schleiden

Answer

D. Robert Hook

Question 38

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

Accepted Answer

C. 0.5

Answer

A. 0.75

Answer

B. 0.25

Answer

D. .1

Question 39

Which of these organisms partly digest its food extracellularly?

Accepted Answer

C. Spider

Answer

A. Butterfly

Answer

B. Cockroach

Answer

D. Mosquito

Question 40

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

Accepted Answer

D. denitrifying bacteria

Answer

A. puterfying bacteria

Answer

B. nitrogen-fixing bacteria

Answer

C. nitrifying bacteria

Question 41

Strong short and concical beak to pick and crush seeds is an adaptive feature of

Accepted Answer

C. weaver bird

Answer

A. duck

Answer

B. owl

Answer

D. hawk

Question 42

Which of the following can cause shrinkage of living cells?

Accepted Answer

D. Hypertonic solution

Answer

A. Deionized water

Answer

B. Hypotonic solution

Answer

C. Isotonic solution

Question 43

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

Accepted Answer

C. hypotonic

Answer

A. isotonic

Answer

B. dilute

Answer

D. hypertonic

Question 44

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

Accepted Answer

A. liver of humans

Answer

B. reticuloendothelial cells of humans

Answer

C. Malphigian tubules of mosquito

Answer

D. brain of humans

Question 45

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

Accepted Answer

D. Mammalia

Answer

A. Aves

Answer

B. Reptilia

Answer

C. Amphibia

Question 46

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

Accepted Answer

A. Kidney

Answer

B. Colon

Answer

C. Bladder

Answer

D. Liver

Question 47

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

Accepted Answer

A. systemic circulation

Answer

B. closed circulatory system

Answer

C. pulmonary circulation

Answer

D. single circulation system

Question 48

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

Accepted Answer

D. vestibular system

Answer

A. cochlea

Answer

B. pinna

Answer

C. perilymph

Question 49

An example of a non-bio degrable pollutants is

Accepted Answer

C. ceramics

Answer

A. dung

Answer

B. bones

Answer

D. woods

Question 50

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

Accepted Answer

A. negative phototaxism

Answer

B. positive phototaxism

Answer

C. negative phototropism

Answer

D. postive phototropism

2016 JAMB Biology Past Questions

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