The lowest level of organization in living organisms is
отговор
(B)
cell
2
Which of the following is the most complex according to their cellular level of organization?
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(A)
Heart
3
Which of the following organisms is multicellular?
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(B)
Spirogyra
4
In bryophytes, sex organs are produced in the
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(C)
gametophyte
5
Seed plants are the most dominant vegetation on land because of
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(C)
efficient seed dispersal
6
Which of the following is an aboreal organism?
отговор
(D)
Bird
7
i2/1, c0/0, pm3/2, m3/3. The general formula above represent that of
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(D)
a herbivore
8
A circulatory system is very essential in mammals but not in smaller organisms like Amoeba because
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(B)
Diffusion is sufficient to transport materials in Amoeba
9
In vascular plants, the sieve tubes and companion cells are present in the
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(D)
phloem
10
The stomata of leaves are similar in function to the
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(C)
spiracle of insects
11
The use of moist skin for respiration in amphibians is known as
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(B)
cutaneous respiration
12
Water in plants is removed as water vapour through the process of
отговор
(D)
transpiration
13
An example of an organ of perennation in plants is
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(A)
rhizome
14
Alternation of generation is a feature shown in
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(A)
mosses
15
Coordination and regulation of body activities in mammals are achieved by the
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(B)
nerves and hormones
16
The Cerebellum of the Brain controls
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(B)
Muscular Activity
17
The part of the brain responsible for peristalsis is the
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(B)
Medulla Oblongata
18
Which of the following instruments is used for measuring atmospheric pressure?
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(D)
Barometer
19
The influence of soil on organisms in a habitat is referred to as
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(A)
Edaphic
20
The genetic make-up of an organism is described as
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(D)
Genotype
21
The major limiting factors of productivity in the aquatic habitat include the following except?
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(C)
Water
22
Which of the following group of organisms feeds directly on green plants?
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(A)
Primary Consumers
23
A characteristic feature of tropical rainforest is that it
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(B)
Contains large number of plant species
24
The study of how and why population size change over time is
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(B)
Population dynamics
25
A severe and long dry season is a characteristic feature of
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(A)
Sahel Savanna
26
Which of the following is a nitrogen-fixing blue-green algae of soil?
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(D)
Anabaena
27
The soil with highest water-retaining capacity is
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(A)
Clayey Soil
28
The causative agent of Poliomyelitis is
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(A)
Virus
29
One of the ways of controlling noise pollution in urban areas is
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(A)
by siting industries away from residential areas
30
A constituent of the exhaust fumes from electricity generating sets which causes serious pollution is
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(A)
Carbon (II) Oxide
31
Which of the following is true of small pox?
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(C)
It can effectively be controlled by vaccination
32
A pollutant that is mostly associated with acid rain is
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(A)
Nitrogen (IV) Oxide
33
When the adults have reach a certain degree of weakness, the process of binary fission is replaced by conjugation in
отговор
(A)
Paramecium
34
Whorls, arches, loops and compounds are types of variation in
отговор
(B)
Finger prints
35
A couple has 10 children, all female. Which of the following best explains the situation
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(A)
The sex determination was by the man's X chromosome
36
A biological agent with antiviral property is
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(A)
Interferon
37
One of the advantages of outbreeding is
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(B)
disease resistance
38
An individual with blood group AB can receive blood from those in blood group(s)
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(A)
A, B, AB, O
39
The stream-lined shape of fishes is an adaptation for
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(B)
easy movement
40
An example of a poikilothermic organism is a
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(A)
Lizard
41
All living organisms are constantly involved in a struggle for existence. This was proposed by
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(B)
Darwin
42
Adaptive radiation is illustrated in
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(A)
modified insect mouthparts
43
i. Growth is mainly apical ii. Growth is specific with definite shape iii. Growth is throughout life. Which of the above correctly describes the growth pattern in plants?
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(D)
i and iii only
44
Use the diagram to answer this question. The part labelled II is the
отговор
(D)
contractile vacuole
45
Use the diagram above to answer this question. The part responsible for photosynthesis is labelled
