Which of the following is most advanced in the evolutionary trend of animals?
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(D)
Cockroach
2
Which of the following is the lowest category of classification?
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(B)
species
3
Plants that show secondary growth are usually found among the
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(D)
dicotyledons
4
The fungi are distinct group of eukaryote mainly because they have
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(B)
no chlorophyll
5
An arthropod that is destructive at early stage of its life cycle is
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(A)
butterfly
6
An animal body that can be cut along its axis in any plane to give two identical parts is said to be
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(A)
radially symmetrical
7
Which of the following possesses mammary gland?
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(B)
whale
8
The feature that links birds to reptiles in evolution is the possession of
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(D)
scales
9
Countershading is an adaptive feature that enables animals to
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(B)
remain undetected
10
Which of the following plant structures lacks a waterproof cuticle?
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(C)
root
11
In the mammalian male reproductive system, the part that serves as a passage for both urine and semen is the
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(A)
urethra
12
In plants which of the following is required in minute quantities for growth?
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(A)
Copper
13
Which of the following organisms is both parasitic and autotrophic?
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(B)
Loranthus
14
A function of the hydrochloric acid produced in the human stomach during digestion is to
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(C)
stop the action of ptyalin
15
Which of the following is a polysaccharide?
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(D)
Cellulose
16
In the kidney of mammals, the site of ultrafiltration is the
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(B)
Bowman's capsule
17
Which of the following is involved in secondary thickening in plants?
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(D)
Vascular cambium and cork cambium
18
An example of a fruit that develops from a single carpel is
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(C)
bean
19
Plant growth can be artificially stimulated by the addition of
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(A)
gibberellin
20
The autonomic nervous system consists of neurons that control the
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(B)
heart beat
21
The water cycle is maintained mainly by
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(B)
evaporation and condensation of water in the environment
22
Plants of temperate origin can be grown in tropical areas in the vegetation zones of the
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(B)
guinea savanna
23
Organisms living in an estuarine habitat are adapted to
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(C)
withstand wide fluctuations in salinity
24
The presence of stilt roots, pneumatophores, sunken stomata and salt glands are adaptive features of plants found in the
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(B)
mangrove swamps
25
Which of the following animals can exist solely on the water they get from food and metabolic reactions?
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(B)
Desert dwellers
26
The most likely first colonizers of a bare rock are
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(C)
lichen
27
The carrying capacity of a habitat is reached when the population growth begins to
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(D)
remain steady
28
The abiotic factors that control human population include
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(C)
flooding and earthquake
29
An indigenous method of renewing and maintaining soil fertility is by
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(D)
crop rotation and shifting cultivation
30
The diseases caused by water-borne pathogens include
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(D)
typhoid and cholera
31
Which of the following is true in blood transfusion?
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(A)
person of blood group AB can donate blood only to another person of blood group AB
32
A yellow maize is planted and all the fruits obtained are of yellow seeds. When they are croos-bred, yellow seeds and white seeds are obtained in a ratio 3:1 . The yellow seed is said to be
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(D)
a dominant trait
33
When a colour-blind man marries a carrier woman. What is the probability of their offspring being colour blind?
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(B)
50%
34
The correct base pairing for DNA is
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(A)
adenine → thymine and guanine → cytosine
35
The short thick beak in birds is an adaptation for
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(A)
crushing seeds
36
The basking of Agama lizards in the sun is to
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(B)
raise their body temperature to become active
37
The significance of a very large number of termites involved in nuptial swarming is to
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(C)
search for a favourable place to breed
38
The use and disuse of body parts and the inheritance of acquired traits were used to explain
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(B)
Lamarck's theory
39
From his study of Galapagos finches, Darwin derived his theory of evolution from
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(B)
comparative physiology
40
Use the diagram above to answer this question.
The organelle responsible for heredity is labelled
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(B)
ll
41
Use the diagram above to answer this question.
The part labelled IV is the
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(C)
endoplasmic reticulum
42
Use the diagram above to answer this question.Arrows represent directional movement materials.
Transportation in the xylem is represented by
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(D)
IV
43
Use the diagram above to answer this question. Arrows represent directional movement materials.
The arrow labelled ll represents the
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(A)
release of oxygen
44
Use the diagram above to answer this question.
The developing embryo is usually contained in the part labelled
