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A humming bird is able to feed on nectar because its beak is…

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A humming bird is able to feed on nectar because its beak is

A. short, slender and ridged

B. short, strong and conical

C. long, slender and slightly curved

D. long, wide and slightly curved




The nature and shape of a bird’s beak is often adapted to its source and mode of feeding.

A humming bird is able to feed on nectar because its beak is long, slender, and slightly curved.

Now for the right answer to the above question:

  1. If the source of nutrient is the nectar containing flowers, then the beak isn’t expected to be short. Although it should be slender, it is also expected not to be ridged as this would impede effective feeding. So, A is incorrect.
  2. Beak not expected to be short, conical and compulsorily strong. B is also incorrect.
  3. Yes, such beak should be long to completely pierce and reach into the juice, slender to easily pierce through, and slightly curved to properly fit and enhance feeding. So, C is correct.
  4. D is incorrect; the beak is expected to be slender and not wide, as being wide would prevent effective penetration.
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You may please note that:

  • Adaptations in mouthparts of various birds are in accordance to their sources of nutrition.

Use the questions and answers session to raise further questions and deal more on this topic…

/ culled from 2017 JAMB-UTME biology question 31 /

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