1990 - JAMB Biology Past Questions and Answers - page 2

11
In a reflex action, impulse flows from
A
1 to 2
B
2 to 1
C
4 to 1
D
4 to 2
correct option: a
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12
In a saprophyte, sex organs are produced in the
A
Gamotrophyte
B
Rhizoid
C
Protonema
D
Sporopyte
correct option: c
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13
Viruses are considered to be living organisms because they
A
possess transmittable characters
B
move from one place to another
C
respond to stimulation
D
ingest food materials
correct option: a
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14
Which of the following characteristics is common to Amoeba and Paramecium?
A
Oral groove
B
Trichocyst
C
Contractile vacuole
D
Cilia
correct option: c
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15
Hydra removes undigested food by
A
passing it through the anus
B
passing it through the mouth
C
means of a contractile vacuole
D
egesting it through the body surface
correct option: b
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16
Which of the following groups of invertebrates reproduces by budding?
A
Arthropoda
B
Annelides
C
Mollusces
D
Coelenterata
correct option: d
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17
The algae, bryophytes and pteridophytes are similar in that they
A
are sea weeds
B
have no vascular tissue
C
require moisture for fertilization
D
are microscopic plants
correct option: b
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18
The spores of ferns are dispersed by
A
wind
B
water
C
insects
D
explosive mechanism
correct option: d
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19
The part labelled 3 is the
A
leaf scar
B
lenticle
C
auxillary bud
D
girdle scar
correct option: c
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20
Which part of the twig produces auxins?
A
4
B
3
C
2
D
1
correct option: d
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