Question

select the words that best complete the sentences. sharks do not have a single bone in their bodies. instead, their skeleton is made of cartilage. cartilage is the same material that the human nose and of. cartilage weighs less than bone, allowing sharks to swim less than if they had bones. scarcely accidentally densely entirely

Explanation:

"Entirely" means completely. Sharks' skeletons are completely made of cartilage. "Scarcely" means hardly; "accidentally" means by chance; "densely" refers to a high - concentration or close - packed state. None of these other words fit the context as well as "entirely" to describe the composition of sharks' skeletons.

Answer:

entirely