Question

explanation
is the group of words in bold a phrase or a clause?
did you know that tarantulas can survive for as long as two y
phrase clause

Explanation:

A clause contains a subject and a predicate (a verb and what it acts on or relates to). The bolded group "tarantulas can survive for as long as two y" (assuming the full part has a subject "tarantulas" and a predicate with the verb "can survive") has a subject and a verb - based structure, so it's a clause. A phrase lacks a subject - predicate combination.

Answer:

clause