2018 - JAMB Biology Past Questions and Answers - page 6
51
The hormones secreted by pancreas serves to
A
Facilitate the development of facial hairs
B
Raise the level of calcium in the blood
C
Lower blood glucose level
D
Make the body react to emergencies
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52
Blood circulation in a mammal is said to be double because
A
It passes twice through the heart in a complete circuit
B
It moves in both arteries and veins
C
It circulates in both the hands and other organs
D
The heart contains auricles and ventricles
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53
Examples of animals with mammary glands include the following except
A
Cow
B
Goat
C
Pig
D
Hen
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54
The hygrometer is used for measuring
A
Relative Humidity
B
Specific Gravity
C
Rainfall
D
Salinity
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55
Mineral salts can be absorbed into roots by
A
Osmosis only
B
Osmosis and diffusion
C
Diffusion and active transport
D
Imbition only
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56
Which is an Animal without red blood cells
A
Frog
B
Earthworm
C
Snake
D
Peacock
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57
The temporary union of two organisms and the exchange of micronuclear elements is called
A
Conjugation
B
Binary fusion
C
Extrapolation
D
Interexchange
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58
A plant tissue that carries water and mineral salt is
A
Xylem
B
Cortex
C
Phloem
D
Cambium
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59
Which of the following relationship involves only one organism
A
Saprophytism
B
Commensalism
C
Parasitism
D
Symbiosis
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