Which of the following animals is cold blooded

Step 1: Analyze the question The question asks which animal is cold blooded. The scientific term for this is ectothermic (or poikilothermic).

Step 2: Explain the concept

• Cold-blooded (ectothermic/poikilothermic) animals cannot regulate their body temperature internally. Their body temperature changes with the surroundings. Examples: fishes, amphibians (frogs, toads), and reptiles (lizards, snakes, crocodiles).
• Warm-blooded (endothermic/homoiothermic) animals maintain a constant body temperature regardless of the environment. Examples: mammals and birds.

Step 3: Classify each option

• A. Cat: a mammal, so it is warm-blooded.
• B. Lizard: a reptile, so it is cold-blooded.
• C. Whale: a mammal that lives in water, so it is warm-blooded. It has a thick layer of blubber for insulation.
• D. Bird: warm-blooded, and it maintains a high, constant body temperature.

Step 4: Answer The only cold-blooded animal listed is the lizard.

Exam tip: Remember it this way: "FAR are cold; MB are warm". Fishes, Amphibians, and Reptiles are cold-blooded. Mammals and Birds are warm-blooded. Watch out for the whale, because it lives in water like a fish but is a mammal, so it is warm-blooded. JAMB likes to use this kind of trap.