The duck-billed platypus is quite an unusual mammal. Use credible websites to research the duck-billed platypus. Why is it unusual compared to other mammals? Why is it classified as a mammal?

Explanation:

fur and milk

A duck billed platypus is classified as a mammal because it feeds its kids with milk and it has fur. They are very unsual because of the way they dig dirt burrows at the water's edge and how they dont have a stomach

Sample answer

Like and rate

The duck-billed platypus’s name come from its snout, which looks a lot like a duck’s bill. It has another birdlike characteristic; it lays eggs, which is quite unusual for mammals. In fact, there are only five known mammals that lay eggs. The other four are four species of echidna, also called the spiny anteater. The duck-billed platypus is classified as a mammal because it has body hair, it’s warm-blooded, and the females produce milk.

the answer to your question is b

voluntary muscles are controlled by the cerebellum.