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Which of the following structures is a protective…

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BIOLOGY

Which of the following structures is a protective adaptive feature of the Agama Lizard to the environment?

A. Nuchal crest

B. Claws

C. Scaly skin

D. Gular fold.

QUICK ANSWER…

C

DETAILS…  

The Agama lizard is a reptile dwelling on dry land; it is characterized by special adaptive features such as nuchal crest, claws, scaly skin, and gular fold. In this question, we are required to identify which of these features is adapted for protection.

Now for the right answer to the above question:

  1. The nuchal crest, found at the back neck of the Agama is usually raised during acts of aggression to ward off competitors and sometimes attract mates. A is incorrect.
  2. The claws are adapted to enable easy grasp, movement, and climbing. B is incorrect.
  3. The scales of the Agama prevent its drying and desiccation. C is correct
  4. D is also incorrect; the gular fold, a swollen part found at the neck, and just before the chest, is activated and swollen to attract mates and to ward off competitors.

QUICK ADVICE…

You may please note that:

  • The scaly skins of the Agama, in addition to preventing desiccation, also protects it from wide temperature variations and possible infections.

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

/ culled from 2016 JAMB-UTME biology question 4 /

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