Question

why do we put snake and turtle in one class

Answer 1

Both snake and turtle are kept in the same class because both are

(i) blooded,
(ii) have scales,
(iii) breathe through lungs
(iv) have three chambered hearts, and
(v) lay eggs without covering.

Answer 2

Hii
it is your answer
we put both snakes and turtles in one class because they both are cold blooded animals