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Q: Which of the following is an example of the phylum Mammalia in the animal kingdom?
  • A. Rat
  • B. Pigeon
  • C. Crocodile
  • D. Chicken
Correct Answer: Option A - Mammals are vertebrates that have hair or fur, mammary glands that produce milk, and a four - chambered heart. They also have a diaphragm, a muscular sheet that separates the chest and abdominal cavities and helps in breathing. Some examples of mammals are humans, dogs, rats, cats, whales, and elephants.
A. Mammals are vertebrates that have hair or fur, mammary glands that produce milk, and a four - chambered heart. They also have a diaphragm, a muscular sheet that separates the chest and abdominal cavities and helps in breathing. Some examples of mammals are humans, dogs, rats, cats, whales, and elephants.

Explanations:

Mammals are vertebrates that have hair or fur, mammary glands that produce milk, and a four - chambered heart. They also have a diaphragm, a muscular sheet that separates the chest and abdominal cavities and helps in breathing. Some examples of mammals are humans, dogs, rats, cats, whales, and elephants.