1989 - WAEC Biology Past Questions and Answers - page 5
41
Maize is best stored against insect attack
A
on raised platforms
B
in fumigated silos
C
in a sunny area
D
while still on the cob
Ask EduPadi AI for a detailed answer
Share this question
42
Which of the following is not an effect of overcrowding on a population?
A
Death
B
Competition
C
Commensalism
D
Aggression
Ask EduPadi AI for a detailed answer
Share this question
43
The term used in describing the effective management of national resources by man is
A
preservation
B
utilization
C
economics
D
development
Ask EduPadi AI for a detailed answer
Share this question
44
Breathing roots are characteristic structures of plants growing in
A
mangrove swamp
B
desert
C
shrub biome
D
savannah
Ask EduPadi AI for a detailed answer
Share this question
45
At which of the following stages of cell division can the cell be said to be resting
A
Anaphase
B
Telophase
C
Prophase
D
interphase
Ask EduPadi AI for a detailed answer
Share this question
46
Which of the following represents the phenotypic ratio, when a plant Rr is crossed with another plant Rr,
assuming that the gene R for round seed is dominant and wrinkled r is recessive?
assuming that the gene R for round seed is dominant and wrinkled r is recessive?
A
1:2:1
B
2:2:1
C
3:2
D
3:1
Ask EduPadi AI for a detailed answer
Share this question
47
All hereditary characters in a cell are passed on from parent-cell to daughter-cell through the process of
A
mitosis
B
meiosis
C
fertilization
D
implantation
Ask EduPadi AI for a detailed answer
Share this question
48
What stage is illustrated by the diagram?
A
lnterphase
B
Prophase
C
Metaphase
D
Anaphase
Ask EduPadi AI for a detailed answer
Share this question
49
What is the name given to the structure labelled A at this stage of cell division?
A
Chromatin
B
Chromosome
C
Chromatid
D
Gene
Ask EduPadi AI for a detailed answer
Share this question
50
The evidence for evolution can be obtained from the following except
A
fossil
B
anatomy
C
history
D
embryology
Ask EduPadi AI for a detailed answer
Share this question