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?

This is one form of rna that transports a specific amino acid to a ribosome during protein synthesis.

In which layer do organisms on earth love?

Rarefaction is used for which of the following? a. creating a representative sample b. studying how disease impacts populations c. rediscovering species thought to be instinct d. determining which sea creatures live in an area