Answer:
1. That a secretive lynx lives in this area has long been suspected. - S
2. The counselors offered whoever-saw a mountain lion a ride home. - 10
3. The researchers knew that emperor penguins were seldom seen in their natural habitat. - DO
4. Whoever sees a dead leaf mantis must have a good eye for camouflage. - S
5. You would be surprised by how many one-celled animals you can see in a drop of pond water under a microscope. - OP
6. Finding where musk ox graze means a trip to the remote tundra. - DOV
7. Risa showed whoever was interested her slides of the slow loris. - 10
8. Amoebas and paramecia were what confused the student. - PN
9. He heard that the solitary loon lived on this remote lake. - DO
10. The spelunkers were shocked at how many bats hung hidden deep in the cave. - OP
11. To see how the African lung fish builds its mud cocoon was fascinating. - DOV
12. Small many-celled animals, whatever you call them, are among nature's strangest creatures. - APP
Step-by-step explanation:
Noun clauses are dependent clauses that act as nouns. In a sentence, they are used the same way as nouns are, which means that they can function as the subject, direct or indirect object, predicate nominative, object of a preposition, or the appositive. They begin with words such as how, that, what, whatever, when, where, whether, which, whichever, who, whoever, whom, whomever, and why.
The subject is what the sentence is about - what performs an action or is described.
The direct object is what receives an action represented by the verb, and the indirect object is the receiver of the direct object.
The predicate nominative is a word or phrase that follows a linking verb and renames or describes the subject.
The object of a preposition is the noun or pronoun that follows the preposition.
The appositive is a noun or pronoun used next to another noun or pronoun to explain or identify it.