Which of these is one of the only two mammals that lay eggs a chicken b wombat c three-toed sloth d duck-billed platypus

The correct answer is D duck billed platypus

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D. duck-billed platypus

Duck-billed platypus is a semiaquatic egg laying mammal that lives both is both aquatic and terrestrial in nature. They have fur that helps them to glide through the water. They are found in eastern Australia.

organisms that are both used in toothpaste as well as cause malaria are protista and monera.