The structure that are common to both plant and animal cells are labelled
Απάντηση
(C)
II and III
2
Food is stored in the structure labelled
Απάντηση
(C)
IV
3
One distinctive feature in the life history of liverworts is that they exhibit
Απάντηση
(A)
Alternation of generation
4
A noticeable adaptation of the animal to its aquatic habitat is the possession of
Απάντηση
(C)
webbed digits
5
The process of water loss and intake indicated by the arrow labelled I and II are respectively
Απάντηση
(D)
evaporation and osmosis
6
The umbrella shaped fruiting body of a fully developed mushroom is the
Απάντηση
(A)
Pileus
7
The similarity among organisms belonging to the same group will be least within each
Απάντηση
(C)
kingdom
8
Hermophroditic reproduction can be found among the
Απάντηση
(C)
Annelids and molluscs
9
An insect whose economic importance is both harmful and beneficial is the
Απάντηση
(D)
Butterfly
10
The cell component that is present in a prokaryotic cell is the
Απάντηση
(B)
Ribosome
11
The stunted growth of a leguminous plant suffering from nitrogen deficiency may be corrected by inoculating the soil with
Απάντηση
(C)
Rhizobium
12
If water that has been coloured red is poured at the base of a wilting plant, it will appear as a red stain in the cells of the
Απάντηση
(A)
xylem
13
The aim of the experiment is to demonstrate
Απάντηση
(B)
the part played by the pleural cavity and diaphragm in respiration
14
In the experimental set-up, the rubber sheet represents the organ called
Απάντηση
(C)
diaphragm
15
The dark reaction of photosynthesis involves the
Απάντηση
(A)
reduction of carbon(IV)oxide to organic
16
The experiment is used to demonstrate that
Απάντηση
(B)
transpiration occurs through the leaves
17
In the experiment, the layer of oil serves to prevent water loss
Απάντηση
(B)
evaporation
18
Organisms I, II, III and IV have surface/volume ratios of 1:2, 1:3, 1:4 and 1:5 respectively. The organism that is likely to have the most complex transport system is
Απάντηση
(A)
IV
19
The part of the mammalian digestive system where absorption of nutrient takes place is the
Απάντηση
(A)
ileum
20
The best method of propagating sugarcane is by
Απάντηση
(D)
Stem cuttings
21
In mammalian males, the excretory and reproductive systems share the
Απάντηση
(C)
Urethra
22
Metabolic production of urea is carried out in the
Απάντηση
(B)
Liver
23
The structure can be found in the
Απάντηση
(B)
Peripheral and central nervous system
24
The point marked I is referred to as
Απάντηση
(D)
node of Ranvier
25
Homologous pairs of chromosome separate during
Απάντηση
(D)
Meiosis
26
An example of a caryopsis is
Απάντηση
(B)
Maize grain
27
The response of plants to external stimuli in a non-directional manner is known as
Απάντηση
(D)
Nastic movement
28
The most important hormone that induces the ripening of fruit is
Απάντηση
(A)
Ethylene
29
A density-dependent factor that regulates the population size of organism is
Απάντηση
(A)
Disease
30
One example of fossil fuels is
Απάντηση
(C)
Coal
31
The most effective method of dealing with non-biodegradable pollutant is by
Απάντηση
(B)
Recycling
32
The correct sequence of biomes from northern to southern Nigeria is
A limited factor in a plant population near a chemical factory is likely to be
Απάντηση
(D)
pH
35
Soil fertility can best be conserved by the activities of
Απάντηση
(D)
Microbes
36
The pioneer organisms in ecological succession are usually the
Απάντηση
(B)
lichens
37
If a DNA strand has a base sequence TCA, its complementary strand must be
Απάντηση
(D)
AGT
38
A man and his wife are both heterozyous for the sickle-cell trait. The likely percentage of their offspring that will be either carriers or sicklers is
Απάντηση
(A)
75%
39
If the pair of alleles for baldness is given as Bb, a female carrier will be denoted by
Απάντηση
(D)
XBbXb
40
An organism that has been extensively used to test the chromosomes theory of heredity is
Απάντηση
(A)
Drosophila melanogaster
41
A feature associated with the Y-chromosome in human is
Απάντηση
(C)
facial hairs
42
The type of reproduction that leads to variation animal and plant population is
Απάντηση
(B)
sexual
43
An insect with a mandibulate mouth part will obtain its food by
Απάντηση
(A)
biting and chewing
44
An argument against Lamarck's theory of evolution is that
Απάντηση
(C)
acquired traits cannot be passed on to the offspring
45
The presence of sunken stomata and the folding of leaves are adaptations to
