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Biology Past Questions and Answers

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Jamb 2004 Biology Questions

Question 26:

If a nursing mother is not producing enough milk, her hormonal system is probably deficient in

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A Prolactin
B Testosterone
C Thyroxin
D Insulin

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Question 27:

The two keys cation involved in the action potential of nervous transmissions are

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A Na<sup style='font-size: smaller;'>+</sup> an Fe<sup style='font-size: smaller;'>2+</sup>
B Mg<sup style='font-size: smaller;'>2+</sup> and K<sup style='font-size: smaller;'>+</sup>
C Na<sup style='font-size: smaller;'>+</sup> and K<sup style='font-size: smaller;'>+</sup>
D Fe<sup style='font-size: smaller;'>2+</sup> and Mg<sup style='font-size: smaller;'>2+</sup>

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Question 28:

A caterpillar and an aphid living in different parts of the same plant can be said to

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A Occupy the same ecological niche
B Be in different habitat
C Occupy different ecological niche
D Be in the same microhabitats

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Question 29:

Ecological ZoneTemperature (^oC)Rainfall (mm)I45300II322000III302200IV15800
From the table above high relative humidity will be expected in zones

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A I and III
B I and IV
C II and III
D II and IV

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Question 30:

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?

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A I
B II
C III
D IV

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