Read the following list of animals: Columba, Testudo, Macaca, Aptenodytes, Neophron, Bangarus, Pteropus How many of the given animals possess additional chambers, the crop and gizzard, in their digestive tract?

Step-by-step solution

The presence of additional chambers in the digestive tract, namely the crop and gizzard, is a characteristic feature of birds (Class Aves). Let us classify the given animals based on their scientific names: Columba (Pigeon) belongs to Aves. Testudo (Tortoise) belongs to Reptilia. Macaca (Monkey) belongs to Mammalia. Aptenodytes (Penguin) belongs to Aves. Neophron (Vulture) belongs to Aves. Bangarus (Krait) belongs to Reptilia. Pteropus (Flying fox/bat) belongs to Mammalia. Therefore, exactly three animals ( Columba