JAMB - Biology (1981)
1
Which of the following is NOT true of wind-pollinated flowers?
2
Which of the following animals is cold blooded
3
What is the genetic ratio of a cross between homozygous tall plant and a homozygous dwarf plant?
4
Where is the food stored in yam plant?
5
Which of the following is the dental formula of man?
उत्तर(C)
i(2/2) c(1/1) pm(2/2) m(3/3)
6
The kind of teeth used for tearing food materials is the
7
Which of the following insects has an incomplete metamorphosis during its life circle?
8
The mushroom is an organism which feeds
9
What is the function of the contractile vacuole in paramecium?
10
Choose the sequence which represents the correct order of organisms in a food chain.
उत्तर(B)
Grass, grasshopper, toad, snake, hawk
11
Which of the following is NOT a function of the liver?
उत्तर(E)
Excretion of urea from the blood
12
Spirogyra reproduces vegetatively by
13
Which of the following instruments is used to demonstrate the response of roots and shoots to gravity?
14
Milk protein is hydrolyzed by
15
The rate of transpiration of a leafy shoot would be highest under
16
What is name of the respiratory organ of the crab?
17
The two types of human tapeworm can be distinguished by the presence or absence of
18
All the following are digestive enzymes except
19
In a bakery, yeast is added to flour to make bread rise. This is possible because yeast produces
20
Accommodation of the human eye is best described as the
उत्तर(C)
focusing of near and distant objects
21
Normally any character shown by an organism is due to the effects of
22
Which of the following statement is NOT true of symbiosis?
उत्तर(D)
Association between two similar species
23
A person whose blood can be donated to all other people, must have the blood group
24
If Benedict's solution gives a positive result in a food test, the food contains
25
A surprising fact about sickle cell disease is that it
26
उत्तर(D)
changing of ammonia to nitrities, then nitrates
27
Which of the following statements is NOT true of menstruation?
उत्तर(B)
The discharge contains amniotic fluid
28
The tissue which connects a muscle to a bone is a
29
A fruit formed from a single flower having several free carpels is
30
If the anthers of a flower mature before the stigma, the condition is termed
31
An instrument used in measuring the speed of wind is
32
In which of the following plants is swollen shoot disease common?
33
One common feature of the fungi, algae, mosses and ferns is that they?
34
The deficiency of vitamin D leads to
35
Which of these substance is likely to be deficient in the diet of a person having goitre?
36
Growing yam tendrils climb for support. This growth response is
37
Soil is said to be fertile if
उत्तर(B)
it can supply usable nutrients to plants
38
A plant which has a horizontal underground stem is
39
The hepatic portal vein is unique because it
40
The functional unit of a mammalian kidney is the
41
The correct route for a piece of bread eaten by a mammal is
उत्तर(A)
oral cavity - oesophagus - stomach - ileum - rectum
42
The thoracic vertebrae of a mammal is characterized by the
43
The correct figure sequence for the following labeled parts (stigma, ovary wall, embryo sac, integument and micropyle) is
44
Which of the structure becomes the seed coat after fertilization?
45
What would happen if solution Y is more concentrated than solution X in the figure above?
उत्तर(D)
The level of Y would rise and X would fall
