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JAMB - Biology (2022)

1
sources of air pollutants are?
Answer
(C)
sulphur dioxide, vehicle exhausts, and aerosols
2
The body of a snail is divided into head?
Answer
(D)
visceral mass and foot
3
An adaptation for defense in animals is?
Answer
(C)
spines in porcupine fish
4
The movement of Euglena towards the source of light is a?
Answer
(B)
tactic movement
5
During mitosis, the stage at which chromosomes lines up around the equator is?
Answer
(B)
metasphase
6
The waste product of insects is?
Answer
(A)
uric acid
7
Succession that occurs on an abandoned farm land is?
Answer
(B)
secondary
8
In Nigeria, Southern Guinea Savanna is found in?
Answer
(B)
Kogi and Kwara
9
Which of the following is associated with the dark stage of photosynthesis?
Answer
(A)
Assimilation of Carbon(IV)oxide
10
The part of mammalian skin that excretes metabolic wastes is?
Answer
(A)
sweat gland
11
The feeding relationship that exists between a tick and a cow is?
Answer
(A)
parasitism
12
The type of fruit that is formed from a single flower having several free carpels is?
Answer
(B)
aggregate fruit
13
The part that performs urinogenital function in the male reproductive system is the?
Answer
(C)
urethra
14
The components of blood in man are?
Answer
(D)
red blood cells, white blood cells, plasma and platelets
15
The development of big muscles by a wrestler is an example of?
Answer
(A)
acquired characteristics
16
Lack of nucleus is a feature in?
Answer
(C)
erythrocyte
17
A universal recipient of blood belongs to blood group?
Answer
(B)
AB
18
The internal structure of a leaf that has larger air space is?
Answer
(C)
spongy mesophyll
19
An example of arboreal animal is?
Answer
(A)
squirrels
20
The movement of sugars from the leaf to other parts of plant is?
Answer
(D)
translocation
21
Gaseous exchange in annelids is more advanced and efficient compared to flatworms because?
Answer
(B)
they have well developed respiratory structures
22
The structure that joins the two strands of a chromosome together is the?
Answer
(C)
centromere
23
When a colour blind woman marries a normal man, what is the probability of their son being colour blind?
Answer
(B)
100%
24
The correct pathway for blood flow from the heart to the tissues of mammals is?
Answer
(B)
heart-artery-arteriole-tissues
25
Tall trees with buttress roots and evergreen leaves are characteristics features of?
Answer
(C)
tropical rain forests
26
The genes crossing over occurs during?
Answer
(D)
meiosis
27
In genetic counseling, a man with hemoglobin  formation HbA HbS is most preferred to marry a woman of?
Answer
(A)
HbA HbA
28
An ecological instrument used to measure wind direction is? 
Answer
(B)
wind vane
29
The growth of mucor on a piece of bread is?
Answer
(D)
saprophytism
30
Conversion of atmosphere carbon into chemical bond energy occurs during the process of?
Answer
(B)
photosynthesis
31
The display of male agama lizard is to?
Answer
(C)
attract female for mate
32
The end product of the digestion of carbohydrate is?
Answer
(C)
glucose
33
The sum total of all observable features of an organism is?
Answer
(A)
phenotype
34
Pentadactyl plan of the fore limbs of frog, bird, horse, whale and man is a proof of?
Answer
(B)
evolution
35
The under secretion of thyroxine in children results in?
Answer
(D)
cretinism
36
Petaloid sepals serve the function of?
Answer
(B)
attracting pollinating agents to a flower
37
The system of classification in which there are seven hierarchies from kingdom to species was introduced by?
Answer
(B)
Carolus Linneus
38
An adaptive feature of camel to the desert is?
Answer
(D)
ability to tolerate high degree of dehydration
39

The part labelled II is?

Answer
(B)
cytoplasmic connections
40

The organism above is?

Answer
(C)
volvox