Fossils reveal the structures of plants and animals that lived long ago. which of the words or groups of words is the simple predicate?

Lived
simple predicate  is the verb in the sentence which expresses what is said about the subject.
the complete  predicate   of a sentence tells what the subject does or is. it includes a verb and all other details that describe what is going on. example: my father fixed the dryer. the  simple predicate   is the main verb in the  predicate   that tells what the subject does.