In which of the following classes does temperature determine the sex in some species?

Correct option is D

• In some reptile species, the sex of an offspring is determined by the temperature at which the eggs are incubated. This phenomenon is called Temperature-Dependent Sex Determination (TSD). For example, in many species of turtles, lizards, and crocodiles, higher or lower incubation temperatures can produce either male or female offspring.

• Mammals: In mammals, sex is determined by the presence of sex chromosomes (XX for females, XY for males).
•  Amphibians: Amphibians generally have genetic sex determination, although temperature can influence some traits in certain species.
• Aves (Birds): In birds, sex is determined by the ZW sex chromosome system, not by temperature.