read the paragraph, then choose the word that best completes the sentence. a narwhal is a kind of porpoise…

read the paragraph, then choose the word that best completes the sentence. a narwhal is a kind of porpoise. it lives in the arctic sea. narwhals are found near the coasts and sometimes in rivers. they have only two teeth. in males, the top tooth grows to be rather large. the tooth can grow to be nearly ten feet (3 meters) long. this makes the narwhal look like a unicorn. narwhals are carnivores, but they do not use their teeth to hunt. they feed on fish, shrimp, and other small marine life. like dolphins, they often travel in groups. in rare cases, narwhal groups can have hundreds or even thousands of members. a male narwhal has a(n) ______ tooth. a valuable b delicate c hollow d unusual

read the paragraph, then choose the word that best completes the sentence. a narwhal is a kind of porpoise. it lives in the arctic sea. narwhals are found near the coasts and sometimes in rivers. they have only two teeth. in males, the top tooth grows to be rather large. the tooth can grow to be nearly ten feet (3 meters) long. this makes the narwhal look like a unicorn. narwhals are carnivores, but they do not use their teeth to hunt. they feed on fish, shrimp, and other small marine life. like dolphins, they often travel in groups. in rare cases, narwhal groups can have hundreds or even thousands of members. a male narwhal has a(n) ______ tooth. a valuable b delicate c hollow d unusual

Answer

Brief Explanations:

The text mentions that male narwhals have a top - tooth that grows to be nearly ten feet long and makes them look like unicorns. This is an unusual characteristic compared to most animals' teeth. There is no mention of the tooth being valuable in a monetary or other sense, delicate, or hollow in the given text.

Answer:

D. unusual