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