The epidermis of a leaf is considered an example of a tissue because the cells
3
The organism at the organ level of organisation of life is
4
The disadvantage of complexity of organisation in the higher organisms is that it leads to
5
In which of the following multicellular organisms is-interdependence of cells maintained?
6
Which of the following processes occurs in the second phase of meiosis?
7
The muscle cell fluid of an athlete was tested immediately after a 1 O m race and was found to contain a high concentration of lactic acid. Explain what could have caused this. The
8
The graph above represents the growth pattern of an animal. Which of the following groups of animals shows this pattern of growth?
9
The pulmonary circulation involves movement of the blood to and from the
10
Which of the individual is likely to be suffering from haemophilia?
11
Which of the individual is likely to have HIV?
12
The diagrams above are part of the human lungs. Which of the parts is diagram Z taken from
13
The diagram above is an illustration of the human excretory system. Which of the labelled parts contains the highest amount of nitrogenous waste?
14
Increasing adrenalin content of the blood would be expected to decrease the flow of blood to the
15
The following are all examples of a simple reflex action, except
16
Impulses are conducted towards the nerve cell through the
17
A student dissecting am animal specimen discovered that it had two auricle and on ventricle. The animal is likely to a/an
18
The function of the convex lens in the correction of eye defects is to
19
Which of the following parts of the eye contains light sensitive cells?
20
The hair on the human skin will stand erect when the person is
21
When fertilization occurs that leads to formation of a zygote, which of the following processes takes place?
22
Which of the following structures in a flower develops into the seed?
23
An illustration of a human male reproductive system is shown above. Which of the labelled parts can be cut to-ensure permanent sterility?
24
The brightly coloured petals in some plants is an adaptive colouration for
25
Squirrels easily kill some trees because
26
The major role played by accessory pigments during photosynthesis is to?
27
The main raw materials required for photosynthesis are
28
What is the benefit of thunder and lightning to farmers?
29
Which of the following substances must be present in the soil for growth of a healthy green plant?
30
The purpose of proteins in the diet of a mammal is to
31
Excess carbohydrates can be stored in the muscles in the form
32
The bones of the legs of a six years old boy are observed to be weak and crooked. Which of the following elements were deficient in his mother’s diet at pregnancy?
33
The diagram above is an illustration of an experimental setup to test the action of yeast. What test would be used to confirm the nature of the gas given off at?
34
Which of the following digestive enzymes would be greatly affected if the liver fails to produce bile?
35
The appropriate food to be given to the child in the picture above is?
36
Which of the following food substances will have little or no calorific value?
37
A space containing a group of interactive organisms is called
38
The area around the earth where life activities go on is referred to as
39
The following are abiotic components of the ecosystem except
40
Which of the following instruments would be most appropriate in comparing the air pressure at different places in the habitat?
41
The best title for the above diagram is
42
How many food chains are in the diagram?
43
Plants with breathing roots are characteristic features of vegetation in
44
In which of the zones can very few organisms be found
45
Which of the following factors exerts a major effect on the distribution of living organisms in the habitat?
46
The use of water closet and septic tanks is preferred to the use of bucket and pit latrines because
47
The detection of vibro cholera in public drinking water is a sign of
48
Which of the following factors would be least likely to act as a density dependent limiting factor in a population of mice?
49
The primary cause of species endangerment is
50
The following pairs of traits are examples of continuous and discontinuous variations respectively except
51
Which of the following statements is true about the ABO blood group system?
52
The classes of fingerprints in man are
53
Which of the following diseases is transmittable through genes?
54
Two plants with red flowers were back crossed, which of the following results indicate that the plants are heterozygous red flowers, where red flowers are dominant?
55
In the structure of DNA, which of the following statements is true?
56
In a case of complete dominance, what is the phenotypic ratio of the cross Bb X Bb; where B =black and b = white?
57
Two yellow-flowered hybrid plants each carrying a recessive factor for flowers with green colour were crossed. Which of the following ratios shows the correct proportion of offspring that have green flowers?
58
What name is given to a sudden change in a gene or chromosome?
59
Bees are of great importance to the farmer because they
60
Which of the following sequences is the correct evolutionary trend in plants?
61
In the diagram, the arrow labelled II represents the
62
In the diagram, the function of the part labelled 2 is to?
