Home ยป Past Questions ยป Biology ยป Jamb ยป 1981
1

What is the part marked X in the figure above called?

  • A. Pulmonary artery
  • B. Pulmonary vein
  • C. Vena cava
  • D. Main aorta
  • E. Hepatic artery
View Answer & Discuss JAMB 1981
2

The joint at Y in the figure above is

  • A. ball and socket
  • B. hinge
  • C. pivot
  • D. rivet
  • E. none of the above
View Answer & Discuss JAMB 1981
3

The bone labelled X in the figure above is the

  • A. ulna
  • B. fibula
  • C. radius
  • D. humerus
  • E. tibia
View Answer & Discuss JAMB 1981
4

which of the labelled tissues in the figure above is responsible for transport of mineral salts and water in living plants?

  • A. 1
  • B. 2
  • C. 3
  • D. 4
  • E. 5
View Answer & Discuss JAMB 1981
5

What would happen if solution Y is more concentrated than solution X in the figure above?

  • A. the level of X would rise, Y would fall
  • B. the level of X would rise Y would rise
  • C. The level of X and Y would stay the same
  • D. The level of Y would rise and X would fall
  • E. The levels of Y would fall and X would fall
View Answer & Discuss JAMB 1981
6

Which of the structure becomes the seed coat after fertilization?

  • A. 1
  • B. 2
  • C. 3
  • D. 4
  • E. 5
View Answer & Discuss JAMB 1981
7

The correct figure sequence for the following labeled parts (stigma, ovary wall, embryo sac, integument and micropyle) is

  • A. 12453
  • B. 24135
  • C. 21435
  • D. 14325
  • E. 31425
View Answer & Discuss JAMB 1981
8

The thoracic vertebrae of a mammal is characterized by the

  • A. vertebraterial canal
  • B. prominent neural arch
  • C. prominent transverse
  • D. prominent neural spine
  • E. prominent centrum
View Answer & Discuss JAMB 1981
9

The correct route for a piece of bread eaten by a mammal is

  • A. oral cavity - oesophagus - stomach - ileum - rectum
  • B. oral - cavity - stomach - oesophagus - duodenum - ileum - rectum
  • C. oral cavity - oesophagus - duodenum - rectum
  • D. oral cavity - oesophagus - ileum - stomach - duodenum - rectum
  • E. oral cavity - oesophagus - stomach - ileum - duodenum - rectum
View Answer & Discuss JAMB 1981
10

The functional unit of a mammalian kidney is the

  • A. urethra
  • B. malphigian capsule
  • C. glomerulus
  • D. nephron
  • E. ureter
View Answer & Discuss JAMB 1981
11

The hepatic portal vein is unique because it

  • A. carries deoxygenated blood
  • B. begins and ends with capillaries
  • C. is the largest vein in mammals
  • D. carries digested food
  • E. is the shortest vein in mammals
View Answer & Discuss JAMB 1981
12

A plant which has a horizontal underground stem is

  • A. rhizome
  • B. corm
  • C. creeper
  • D. tuber
  • E. bulb
View Answer & Discuss JAMB 1981
13

Soil is said to be fertile if

  • A. It is black
  • B. it can supply usable nutrients to plants
  • C. the oxygen content is very high
  • D. artificial manure is added to it
  • E. it is not waterlogged
View Answer & Discuss JAMB 1981
14

Growing yam tendrils climb for support. This growth response is

  • A. haptotropism
  • B. geotropism
  • C. phototropism
  • D. hydrotropism
  • E. chemotropism
View Answer & Discuss JAMB 1981
15

Which of these substance is likely to be deficient in the diet of a person having goitre?

  • A. potassuim
  • B. calcium
  • C. iodine
  • D. sodium
  • E. Phosphorus
View Answer & Discuss JAMB 1981
16

The deficiency of vitamin D leads to

  • A. scurvy
  • B. pellagra
  • C. rickets
  • D. beriberi
  • E. polio
View Answer & Discuss JAMB 1981
17

One common feature of the fungi, algae, mosses and ferns is that they?

  • A. are photosynthetic
  • B. show alternation of generation
  • C. reproduce by means of conjugation
  • D. can survive dry conditions
  • E. have no seeds
View Answer & Discuss JAMB 1981
18

In which of the following plants is swollen shoot disease common?

  • A. Groundnut
  • B. cocoa
  • C. Corn
  • D. Cotton
  • E. Rubber
View Answer & Discuss JAMB 1981
19

An instrument used in measuring the speed of wind is

  • A. a barometer
  • B. a wind gauge
  • C. a wind vane
  • D. an anemometer
  • E. a hydrometer
View Answer & Discuss JAMB 1981
20

If the anthers of a flower mature before the stigma, the condition is termed

  • A. epigyny
  • B. hypogyny
  • C. protogyny
  • D. protandry
  • E. perigyny
View Answer & Discuss JAMB 1981
21

A fruit formed from a single flower having several free carpels is

  • A. a multiple fruit
  • B. a dry dehiscent fruit
  • C. a dry indehiscent fruit
  • D. a simple fruit
  • E. an aggregate fruit
View Answer & Discuss JAMB 1981