Question 1 of 20 60 total questions
Which of the following habitats cannot be used for the study of succession?
A Savanna grassland
B Abandoned farmland
C A pond
D Well cultivated land
According to Charles Darwin’s Theory of Evolution, natural selection involves the survival of the
A weakest
B most populous
C youngest
D Fittest
In fishes, the brooders return to their parents mouth for
A feeding
B respiration
C breeding
D protection
Which of the following traits may not be important in marriage counselling
A Sex-determination
B Sickle-cell anaemia
C Rhesus factor
D Colour of skin
Which of the following scientists was involved with organic evolution?
A Mendel
B Larmarck
C Morgan
D Pasteur
The genotypic ratio of 1 : 2 : 1 in the offspring of a hybrid cross illustrates the law of
A use and disuse
B dominance
C segregation
D linkage
Which of the following statements about sex determination is correct? At fertility
A the probability of male to female offspring is 1/2
B the Y chromosome of the father decreases the probability of having a male child to 3/4
C the xx chromosome of the mother decreases the probability of having a female child to 3/4
D the vigour of either parents determines the sex of the offspring
Which of the following statements is correct about variation?
A Offsprings are different from their parents only
B Offsprings from the same parents look alike
C Offsprings differ from their ancestors but look like their immediate parents
D offsprings differ from their ancestors and from each other
Which of the following is an example of discontinuous variation?
A Height of students
B Complexion of beauty contestants
C Blood groups of patients
D Weight of weight lifters
The major types of man’s finger prints do not include
A arch
B compound
C simple
D loop
Which of the following resources is competed for by organisms in the desert?
A Light
B Temperature
C Oxygen
D Water
Which of the following is a renewable natural resources?
A Air
B Timber
C Soil
D Mineral
Which of the following is an effect of carbon monoxide on man?
A irritating the skin
B Reducing oxygen carrying capacity of blood
C Causing gene mutation
D Destroying white blood cells.
During prolonged exercises, glucose in the muscle is convened to
A pyruvic acid
B lactic acid
C co- enzyme
D ethanol
Which of the following parasites is a flatworm?
A Plasmodium
B Trypanosoma
C Ascaris
D Schistosoma
Which of the following factors may not affect living organisms in an aquatic habitat?
A Turbidity
B Temperature
C Humidity
D Light
A situation whereby some mammals remain inactive throughout dry and hot seasons is known as
A aestivation
B dormancy
C burrowing
D incubation
Which of the following is a means of measuring primary production?
A Rate of reproduction of animals
B Life span of an organism
C Number of predators in an environment
D harvested plants in a unit area
Carbon is added to the atmosphere by the following processes except
A respiration
B burning
C photosynthesis
D volcanic eruption
A known weight of soil sample was oven-dried to obtain a constant weight. The loss in weight was due to
A organic matter only
B water only
C water and organic matter
D inorganic matter and water
Next
Question Navigator
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
