1991 - WAEC Biology Past Questions and Answers - page 4
31
The part of the alimentary system of a bird where grinding of maize occurs is the
A
crop
B
stomach
C
gizzard
D
cloaca
correct option: c
Users' Answers & Comments32
Natality is a factor affecting population density because it involves
A
increase in population due to immigration
B
increase in population due to emigration
C
the number of mature females in the population
D
the number of females in the population
correct option: e
Users' Answers & Comments33
The female part of a flower consist of the
A
stigma, style and ovary
B
petals, sepals and anthers
C
stigma, sepals and anthers
D
filaments, style and pollen grain
correct option: a
Users' Answers & Comments34
Puddles,ponds, rivers, lakes, seas and ocean are grouped together as
A
ecosystem
B
biosphere
C
terrestrial habitat
D
marine habitat
correct option: e
Users' Answers & Comments35
Which of the following would be the primary producer in a food chain?
A
Saprophytes
B
Herbivores
C
Carnivores
D
Green plants
correct option: d
Users' Answers & Comments36
fewer number of trees is characteristic of the Savanna zones of Nigeria because
A
there is too much sunlight
B
there is limited amount of rainfall
C
they are usually exposed to grazing animals
D
they are covered by high mountains
correct option: b
Users' Answers & Comments37
The number of individuals in a habitat in relation to the unit space available to each organism is referred to as the
A
birth rate
B
density
C
mortality
D
frequency
correct option: b
Users' Answers & Comments38
which of the following will be the effect of waterlogged top soil on the roots of plants?
A
the waterlogged soil will stimulate rapid growth of roots
B
there will be abundant supply of air for the growth of roots
C
The roots will absorb water i rapidly
D
There willl be an accumulation of plant nutrients
correct option: e
Users' Answers & Comments39
Which of the following is the unit of transmission of hereditary traits in living organisms
A
Nucleus
B
Nucleolus
C
Gametes
D
Genes
correct option: d
Users' Answers & Comments40
The role of dead organic matter in the soil is to
A
make the soil black
B
increase the mineral salt content
C
provide food for all living organisms
D
increase the acidity of soil
correct option: b
Users' Answers & Comments