2000 - WAEC Biology Past Questions and Answers - page 5
41
Which of the following food substances turns bright red when warmed with suddan III solution?
A
Starch
B
Reducing sugar
C
Protein
D
Fat
correct option: d
Users' Answers & Comments42
Mammals require a relatively high amount of carbohydrates because
A
they maintain the weight of the body
B
they are required for growth
C
they initiate enzyme production
D
they yield energy for activities.
correct option: d
Users' Answers & Comments43
All the available places on earth which support life constitute the
A
lithosphere
B
atmosphere
C
biosphere
D
hydrosphere
correct option: c
Users' Answers & Comments44
The abiotic factor which determines the depth to which light penetrates in a pond is
A
current
B
turbidity
C
wind
D
salinity
correct option: b
Users' Answers & Comments45
Which of the following organisms is a producer?
A
Spirogyra
B
Mucor
C
Rhizopus
D
Yeast
correct option: a
Users' Answers & Comments46
Which of the following groups consists of heterotrophs?
A
Mucor, chlamydomonas and Euglena
B
Spirogyra, Mucor and Mushroom
C
Man, Mucor and Mushroom
D
Man, Maize and Cowpea
correct option: c
Users' Answers & Comments47
Which of the following organisms will not bring about decomposition?
A
Earthworm
B
Bactenum
C
Mould
D
Spirogyra
correct option: d
Users' Answers & Comments48
Which of the following is not released during decay of living matter?
A
Ammonia
B
Oxygen
C
Carbon dioxide
D
Heat energy
correct option: b
Users' Answers & Comments49
In commensalism
A
one of the organisms gains and the other loses
B
both organisms benefit from the association
C
one of the organisms gains while the other neither gains nor loses
D
one of the organisms produces extra cellular Digestive juices.
correct option: c
Users' Answers & Comments50
Parasitism can best be defined as an association between two organisms in which
A
both organisms benefit
B
one organism gains and the other neither gains nor loses
C
both organisms suffer some disadvantages
D
one organism gains and the other loses
correct option: d
Users' Answers & Comments