2004 - JAMB Biology Past Questions and Answers - page 3
21
A
contract to pull the hair erect
B
conduct nervous impulses
C
carry blood and nitrogenous waste
D
produce oil for the skin
correct option: a
Users' Answers & Comments22
The type of reproduction that is common to both Hydra and yeast
A
conjugation
B
binary fission
C
grafting
D
budding
correct option: d
Users' Answers & Comments23
The eggs of birds contains relatively larger quantities of yolk than those of amphibians and reptiles because
A
birds are generally bigger in size
B
embryonic development is longer in birds
C
those of birds are fertilized internally
D
birds lay shelled eggs
correct option: b
Users' Answers & Comments24
Epigeal germination of a seed is characterized by
A
more rapid elongation of the hypocotyl than the epicotyl
B
more rapid elongation of the epicotyl than the hypocotyl
C
equal growth of both the hypocotyl and epicotyl
D
lack of growth of the hypocotyl
correct option: a
Users' Answers & Comments25
Nervous control differs from hormonal control in that the former
A
involves only chemical transmision
B
is a lower process
C
produces short-term changes
D
has no specific pathway
correct option: c
Users' Answers & Comments26
If a nursing mother is not producing enough milk, her hormonal system is probably deficient in
A
prolactin
B
testosterone
C
thyroxin
D
insulin
correct option: a
Users' Answers & Comments27
The two keys cation involved in the action potential of nervous transmissions are
A
Na+ an Fe2+
B
Mg2+ and K+
C
Na+ and K+
D
Fe2+ and Mg2+
correct option: c
Users' Answers & Comments28
A caterpillar and an aphid living in different parts of the same plant can be said to
A
occupy the same ecological niche
B
be in different habitat
C
occupy different ecological niche
D
be in the same microhabitats
correct option: a
Users' Answers & Comments29
Ecological ZoneTemperature (oC)Rainfall (mm)I45300II322000III302200IV15800
From the table above high relative humidity will be expected in zones
From the table above high relative humidity will be expected in zones
A
I and III
B
I and IV
C
II and III
D
II and IV
correct option: c
Users' Answers & Comments30
| Ecological Zone | Temperature (oC) | Rainfall (mm) |
| I | 45 | 300 |
| II | 32 | 2000 |
| III | 30 | 2200 |
| IV | 15 | 800 |
From the table above which of the zones is likely to be desert?
A
I
B
II
C
III
D
IV
correct option: a
Users' Answers & Comments