An unidentified animal 'X' is observed to have additional chambers, namely a crop and a gizzard, in its digestive tract. Which of the following statements is incorrect regarding animal 'X'?

Step-by-step solution

The presence of a crop and a gizzard in the digestive tract is a defining characteristic of birds (Class Aves). Animal 'X' is therefore a bird. Birds are homoiothermous (warm-blooded) animals with a completely four-chambered heart. Respiration is by lungs, and air sacs connected to the lungs supplement respiration. The skin of birds is dry and devoid of glands, except for the oil gland located at the base of the tail. Moist and glandular skin is a characteristic feature of amphibians, not birds. Therefore, the stat