2009 - JAMB Biology Past Questions and Answers - page 4
31
A health condition that is known to have resulted from gene mutation is
A
haemophilia
B
colour blindness
C
sickle-cell anaemia
D
anaemia
correct option: c
Users' Answers & Comments32
Plants that grow in an area that is neither too wet nor too dry are
A
xerophytes
B
mesophytes
C
epiphytes
D
hydrophytes
correct option: b
Users' Answers & Comments33
The part of a domestic fowl responsible for preventing heat loss is the
A
filoplume
B
contour feather
C
down feather
D
quill
correct option: c
Users' Answers & Comments34
Which of the following animals is most adapted for water conservation?
A
earthworms
B
mammals
C
flatworms
D
insects
correct option: d
Users' Answers & Comments35
The specialized pigment cells that are involved in colouration and colour change in animals
A
xanthophyl
B
chromatophores
C
chromatophyll
D
melanin
correct option: b
Users' Answers & Comments36
During the dry season in the tropics, the body metabolism of some animals slows to a minimal level in a process referred to as
A
hibernation
B
aestivation
C
dormancy
D
senescense
correct option: a
Users' Answers & Comments37
According to Darwin, the driving force behind evolutionary change is
A
natural selection
B
genetic drift
C
mutation
D
gene flow
correct option: a
Users' Answers & Comments38
Use the diagram above to answer this question.
The structure that controls loss of water vapour during transpiration is labelled
The structure that controls loss of water vapour during transpiration is labelled
A
l
B
ll
C
lll
D
lV
correct option: d
Users' Answers & Comments39
Use the diagram above to answer this question.
The part labelled l is the
The part labelled l is the
A
spongy mesophyll
B
upper epidemis
C
cuticle
D
vein
correct option: c
Users' Answers & Comments40
Use the diagram above to answer this question.
Emulsification of fats takes place in the part labelled
Emulsification of fats takes place in the part labelled
A
l
B
ll
C
lll
D
lV
correct option: d
Users' Answers & Comments