Animals from which class are warm-blooded?
- Pisces
- Reptilia
- Aves
- Amphibia
Show answer and solution
Correct answer: C. Aves
1. Warm-blooded animals maintain a constant body temperature.
2. Among the options, only birds (class Aves) are warm-blooded; the others are cold-blooded.
3. Hence the answer is Aves.
_Source: RRB Group D CEN-02/2018 PYQ, Q.91 (second)._