2001 NECO Biology Past Questions & Answers

Question 1

The organelle which is contractile in function in Euglena is the

Accepted Answer

D. Myoneme

Answer

A. Chloroplast

Answer

B. Eyespot

Answer

C. Gullet

Answer

E. Paramylon

Question 2

The genotype of a species with respect to a particular trait can be determined by carrying out

Accepted Answer

A. a back cross with a pure stock known to be recessive for that trait

Answer

B. a cross between two F, generations that are heterozygous for the trait

Answer

C. a testcross with a pure stock known to be dominant for the trait

Answer

D. in-breeding among the members of the species

Answer

E. out-breeding with an exotic variety of the species

Question 3

Which caste is NOT found in termites?

Accepted Answer

A. Drone

Answer

B. King

Answer

C. Queen

Answer

D. Soldier

Answer

E. Worker

Question 4

What is NOT a kidney disease?

Accepted Answer

A. Cirrhosis

Answer

B. Kidney stones

Answer

C. Nephritis

Answer

D. Uraemia

Answer

E. Wilm’s tumour

Question 5

Which scientist did NOT contribute to the formulation of the cell theory?

Accepted Answer

A. Isaac Newton

Answer

B. Matthias Schleiden

Answer

C. Robert Hooke

Answer

D. Rudolf Virchow

Answer

E. Theodor Schwann

Question 6

What is NOT a reflex action?

Accepted Answer

C. Leaning

Answer

A. Blinking of an eye

Answer

B. Jerking of the knee

Answer

D. Salivating

Answer

E. Sneezing

Question 7

Soil fertility is NOT conserved by

Accepted Answer

A. continuous cropping

Answer

B. contour ridging

Answer

C. Crop rotation

Answer

D. Mulching

Answer

E. Terracing

Question 8

Which one is NOT an essential part of a flower?

Accepted Answer

D. Petal

Answer

A. Anther

Answer

B. Filament

Answer

C. Ovary

Answer

E. Stigma

Question 9

The scientist who propounded the theory of inheritance of acquired characters via use and disuse was

Accepted Answer

D. Jean Lamarck

Answer

A. August Weismann

Answer

B. Charles Darwin

Answer

C. Gregory Mendel

Answer

E. Thomas Morgan

Question 10

The gradient of land can be measured with an instrument called a/an

Accepted Answer

E. Slope gauge

Answer

A. Aneroid barometer

Answer

B. Hygrometer

Answer

C. Metre rule

Answer

D. Secchi disc

Question 11

The structure that hydra uses to immobilize its prey is called

Accepted Answer

D. nematocysts

Answer

A. Enteron

Answer

B. Osteoblasts

Answer

C. Osteocysts

Answer

E. Pneumatophores.

Question 12

Which world biomes can be found in Nigeria?

Accepted Answer

D. Savannah

Answer

A. Afro-alpine

Answer

B. Coniferous forest

Answer

C. Dessert

Answer

E. Tundra

Question 13

What percentage of oxygen is contained in exhaled air?

Accepted Answer

B. 16%

Answer

A. 21%

Answer

C. 4%

Answer

D. 0.04%

Answer

E. Less than 0.01%

Question 14

Which is NOT an effect of the food shortage on a population?

Accepted Answer

D. Increase in natality

Answer

A. Cannibalism

Answer

B. Competition

Answer

C. Increase in mortality

Answer

E. migration

Question 15

Which part of the brain regulates and co-ordinates muscular movements?

Accepted Answer

A. Cerebellum

Answer

B. Cerebrum

Answer

C. Hypothalamus

Answer

D. Medulla oblongata

Answer

E. ThaIamus

Question 16

The tissue which carries organic food from its site of production to all other parts of the plant is called the

Accepted Answer

C. Phloem

Answer

A. Cambium

Answer

B. Epidermis

Answer

D. Sclerenchyma

Answer

E. Xylem

Question 17

Evidence of organic evolution can be deduced from all the following EXCEPT

Accepted Answer

A. Antecology

Answer

B. Comparative anatomy

Answer

C. Embryology

Answer

D. Fossil records

Answer

E. Geographical distribution

Question 18

The process through which excess amino acids in the body are broken down into urea and a carbohydrate is called

Accepted Answer

A. deamination

Answer

B. denaturation

Answer

C. detoxication

Answer

D. emulsification

Answer

E. excretion

Question 19

Which element is a micro element?

Accepted Answer

C. Manganese

Answer

A. Iron

Answer

B. Magnesium

Answer

D. Phosphorus

Answer

E. Potassium.

Question 20

The vector of the malaria parasite is the

Accepted Answer

A. female anopheles mosquito

Answer

B. female culex mosquito

Answer

C. male anopheles mosquito

Answer

D. male culex mosquito

Question 21

The vector of trypanosome is the

Accepted Answer

E. Tsetse fly

Answer

A. black fly

Answer

B. cockroach

Answer

C. house –fly

Answer

D. mosquito

Question 22

The cell organelle, from which spindle fibers originate during cell division in animal cells is known as

Accepted Answer

A. Centrosome

Answer

B. Chromosome

Answer

C. Leucoplast

Answer

D. Lysosome

Answer

E. Ribosome

Question 23

Which plant hormone inhibits the development of lateral buds in plants

Accepted Answer

B. Auxins

Answer

A. Abscisic acid

Answer

C. Cytokinins

Answer

D. Florigen

Answer

E. gberelIins

Question 24

What type of association does an epiphyte on a tree trunk illustrate?

Accepted Answer

B. Commensalism

Answer

A. Cannibalism

Answer

C. Parasitism

Answer

D. Saprophytism

Answer

E. Symbiosis

Question 25

The instrument used to measure the rate of transpiration in plants is called a/an

Accepted Answer

E. Potometer

Answer

A. Anemometer

Answer

B. Barometer

Answer

C. Hydrometer

Answer

D. Photomer

Question 26

Which is a morphological variation

Accepted Answer

E. Finger print

Answer

A. Ability to taste PTC

Answer

B. Ability to roll the tongue

Answer

C. Behaviour

Answer

D. Blood group

Question 27

Which is NOT a carnivorous plant?

Accepted Answer

B. Dodder plant

Answer

A. Bladderwort

Answer

C. Drosera

Answer

D. Pitcher plant

Answer

E. Venus flytrap

Question 28

Which is NOT a benefit of conservation of natural resources?

Accepted Answer

C. Prosecutes poachers

Answer

A. Permits nature studies

Answer

B. Preserves the beauty of nature

Answer

D. Protects endangered species

Answer

E. Sources of revenue earning

Question 29

Which statement about a nerve cell is NOT correct?

Accepted Answer

D. The cell bodies of the motor neurones are located in the white matter of the spinal cord.

Answer

A. Sensory neurones have their cell bodies in the ganglia along dorsal wall

Answer

B. The axon conduct impulses away from the cell body

Answer

C. The cell body consists of the nucleus and cytoplasm.

Answer

E. The dendrites transmit impulses towards the cell body

Question 30

The blood vessel that supplies blood rich in digested food to the liver is the

Accepted Answer

C. Hepatic portal vein

Answer

A. Hepatic artery

Answer

B. Hepatic portal artery

Answer

D. Hepatic vein

Answer

E. Renal artery

Question 31

The toad’s long sticky tongue is an adaptation for

Accepted Answer

A. Catching insects

Answer

B. Conserving water

Answer

C. Escaping from its predators

Answer

D. Regulating, body temperature

Answer

E. Securing mates

Question 32

Which disease is caused by a virus?

Accepted Answer

B. Measles

Answer

A. Cholera

Answer

C. Tetanus

Answer

D. Typhoid

Answer

E. Tuberculosis

Question 33

Which pollutant is likely to cause cholera?

Accepted Answer

E. untreated sewage

Answer

A. agricultural wastes

Answer

B. industrial wastes

Answer

C. nuclear fallouts

Answer

D. oil spillages

Question 34

The number of individuals of a species per unit area of the habitat can be best described as

Accepted Answer

E. Population density

Answer

A. Distribution

Answer

B. Frequency

Answer

C. Percentage cover

Answer

D. Population size

Question 35

Which is NOT a social animal?

Accepted Answer

C. Butterfly

Answer

A. Ant

Answer

B. Bee

Answer

D. Termite

Answer

E. Wolf

Question 36

Which organism is NOT a filter feeder?

Accepted Answer

A. Adult mosquito

Answer

B. Copepod

Answer

C. Mosquito larva

Answer

D. Oyster

Answer

E. Whale

Question 37

Bacteria; which derive energy by oxidizing certain inorganic compounds, are said to be

Accepted Answer

A. Chemosynthetic

Answer

B. Holozoic

Answer

C. Parasitic

Answer

D. Photosynthetic

Answer

E. Saprophytic

Question 38

Which plant stores food in its roots?

Accepted Answer

A. Cassava

Answer

B. Cocoyam

Answer

C. Irish potato

Answer

D. Onion

Answer

E. Yam

Question 39

What is NOT an abiotic factor?

Accepted Answer

B. predators

Answer

A. Humidity

Answer

C. temperature

Answer

D. turbidity

Answer

E. wind

Question 40

Relative humidity can be measured with a/an

Accepted Answer

D. Hygrometer

Answer

A. Anemometer

Answer

B. Barometer

Answer

C. Hydrometer

Answer

E. Photometer

Question 41

The first bone of the vertebral column located in the neck region is called

Accepted Answer

A. Atlas

Answer

B. Axis

Answer

C. Caudal.

Answer

D. Cervical.

Answer

E. Thoracic

Question 42

A cell that is capable of self existence is a/an

Accepted Answer

A. Amoeba

Answer

B. Human cheek cell

Answer

C. Onion epidermal cell

Answer

D. ovum

Answer

E. spermatozoom

Question 43

Which is the most ecologically viable method of insect pest control?

Accepted Answer

B. Eliminating one of the development stages of the insect

Answer

A. Draining all stagnant pools of water

Answer

C. Employing a lot of labourers to physically handpick the insect pests

Answer

D. Erecting physical barriers against insect pests

Answer

E. Using stronger insecticides which can kill a greater number of insect.

Question 44

Which is NOT an adaptive feature of hydrophytes?

Accepted Answer

C. Extensive root system for absorption of water

Answer

A. Air spaces in tissues for buoyancy

Answer

B. Broad leaves to enhance transpiration

Answer

D. Fibrous root for absorption of water

Answer

E. Waxy cuticle on leaves to prevent wetting

Question 45

Under secretion of thyroxine before maturity causes an abnormality known as

Accepted Answer

A. Cretinism

Answer

B. Gigantism

Answer

C. Dwarfism

Answer

D. Myxoedema

Answer

E. Obesity

Question 46

The movement of food in soluble form within the vascular bundles to all parts of the plant is known as

Accepted Answer

D. Translocation

Answer

A. Diffusion

Answer

B. Evaporation

Answer

C. Transportation

Answer

E. Transpiration

2001 NECO Biology Past Questions

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