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Wednesday, 06 May 2026
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Biology Past Questions and Answers

Biology Questions

Question 1336:
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
View Answer & Explanation
Question 1337:
If a nursing mother is not producing enough milk, her hormonal system is probably deficient in
  • A Prolactin
  • B Testosterone
  • C Thyroxin
  • D Insulin
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Question 1338:
The two keys cation involved in the action potential of nervous transmissions are
  • 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>
View Answer & Explanation
Question 1339:
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
View Answer & Explanation
Question 1340:
Ecological ZoneTemperature (<sup style='font-size: smaller;'>o</sup>C)Rainfall (mm)I45300II322000III302200IV15800<br/>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
View Answer & Explanation