JAMB and WAEC Biology questions: Growth

45 questions with answers and explanations. Tap an option to check yourself.

1. Question 41· Growth· JAMB

   Seeds kept in a sealed jar filled with boiled water fail to germinate. The most likely missing condition is

   • Awater
   • Boxygen
   • Cwarmth
   • Dlight

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   Explanation and discussion

2. Question 42· Growth· WAEC

   An insect that develops through egg, nymph and adult stages shows

   • Abudding
   • Bcomplete metamorphosis
   • Cno metamorphosis
   • Dincomplete metamorphosis

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   Explanation and discussion

3. Question 43· Growth· WAEC

   Which of these conditions is NOT necessary for the germination of most seeds?

   • Aoxygen
   • Bwater
   • Clight
   • Da suitable temperature

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   Explanation and discussion

4. Question 44· Growth· JAMB

   Complete metamorphosis in insects follows the sequence

   • Aegg, pupa, larva, adult
   • Begg, nymph, adult
   • Clarva, egg, pupa, adult
   • Degg, larva, pupa, adult

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5. Question 45· Growth· JAMB

   Gibberellins are plant hormones that promote

   • Aroot curvature towards gravity
   • Bfruit ripening
   • Cleaf fall
   • Dstem elongation and seed germination

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   Explanation and discussion