What is the level of organization of an onion bulb?
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(B)
organ
2
A characteristic exhibited by all living organism is?
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(D)
the ability to remove unwanted substances
3
In a cell, the genes are carried by?
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(B)
chromatin threads
4
Alternation of asexual and sexual modes of reproduction is found in?
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(C)
fern
5
The first terrestrial vertebrates evolved from
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(A)
pisces
6
In plants, the structures that play roles similar to the arteries and veins of animals are the
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(A)
xylem and phloem
7
A blue-green algae is not a protophyte because?
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(B)
its cells are prokaryotic
8
The feature that makes locomotion in water easy for fish is the?
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(C)
streamlined body
9
Bird toes suitable for digging have claws that are?
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(A)
blunt
10
Which of the following is an example of carnivorous plant?
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(B)
bladderwort
11
The part of alimentary system of a bird where food is ground into small particles is the?
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(D)
gizzard
12
which of the following describes the sequence of blood flow from the heart to a tissue?
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(A)
Heart→ artery→ arteriole →tissue?
13
The enzymes of the glycolytic pathway are located in the?
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(D)
cytoplasm
14
In insects, the structure that performs the same function as the kidney in man is the?
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(C)
malphigian tubule
15
The axial skeleton is found in the
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(A)
skull, ribs, vertebral column and breast bone
16
The reproductive system of a male mammal is made up of?
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(B)
testis, prostrate gland, sperm duct and penis
17
In a bean seed, absorption of water at the beginning of germination is through the?
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(B)
micropyle
18
The most important ecological factor in a terrestrial environment is?
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(D)
soil
19
The association between bacteria residing in the rumen of the ruminant is?
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(D)
mutualism
20
A marine protozoan is likely to have no contractile vacuole mainly because the cytoplasm is
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(A)
isotonic to sea water
21
In fresh water marshes and swamps, the most important abiotic factors that organisms have to adapt to is?
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(A)
nature of substratum
22
Which of the following biomass could be characterized by very low rainfall,cold nights, hot days, and fast blooming plants?
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(C)
tropical desert
23
Mass of crucible = 10g
Mass of crucible and soil before heating = 29g
Mass of a crucible and soil after heating = 18g
From the information above, determine the percentage of water in the given soil sample?
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(D)
60%
24
I. Onchocerciasis
II. Schistosomiasis
III.Salmonellosis
IV. Meningitis
which of the diseases listed above are associated with water?
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(C)
I, II and III
25
The major cause of global warming is the?
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(A)
burning of fossil fuel
26
The uniqueness of an individual organism in a population is accounted for by?
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(B)
variation
27
A phenotypic character with intermediate forms that can be graded from one extreme to the other is referred to as?
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(B)
continuous variation
28
A farmer's assumption that the seed from a good harvest will produce a good yield is explained by the theory of
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(D)
heredity
29
The nephridia in the earthworm form part of the?
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(D)
excretory system
30
A woman with the ability to roll her tongue (Tt) marries a man who cannot roll his tongue(tt). what is the probability of each of their children being a tongue roller?
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(C)
50%
31
A health condition that is known to have resulted from gene mutation is?
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(C)
sickle-cell anaemia
32
Plants that grow in an area that is neither too wet nor too dry are
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(B)
mesophytes
33
The part of a domestic fowl responsible for preventing heat loss is the?
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(C)
down feather
34
Which of the following animals is most adapted for water conservation?
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(D)
insects
35
The specialized pigment cells that are involved in colouration and colour change in animals?
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(B)
chromatophores
36
During the dry season in the tropics, the body metabolism of some animals slow to a minimal level in a process referred to as?
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(B)
aestivation
37
According to Darwin, the driving force behind evolutionary change is
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(A)
natural selection
38
Use the diagram above to answer this question.
The structure that controls loss of water vapour during transpiration is labelled
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(D)
lV
39
Use the diagram above to answer this question.
The part labelled l is the
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(C)
cuticle
40
Use the diagram above to answer this question.
Emulsification of fats takes place in the part labelled?
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(D)
lV
41
Use the diagram above to answer this question.
The content of the part labelled lll is usually?
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(C)
acidic
42
Use the diagram above to answer this question.
The zone of physiological stress is represented by?
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(D)
l and lll
43
Use the diagram above to answer this question.
The optimum temperature for the growth of the organism is
