Grammar question - prepositional phrases?

Question

She has transformed her yard into a haven for the native flora and associated wildlife.

The teacher instructs us to label the prepositions. I label, "into the haven" and "for the native flora and associated wildlife." I get marked wrong : teacher says that 'associated wildlife' is not part of the prepositional phrase, but another action verb and its direct object, and that associated is always a verb. Is this correct? I thought that associated was an adjective in this sentence; however, my teacher says I'm wrong.

Answer 1

The teacher did not recognize that a preposition may have a compound object.

1.4 COMPOUND OBJECTS

A preposition can have a compound object, two or more nominatives that function as the direct object of the preposition. Note that objects must appear in the objective case.

I was never comfortable in planes, trains, and automobiles.
Give the award to Rand and her.
That young man with freckles and dimples should be sent first.
http://community-2.webtv.net/solis-boo/Grammar3/page2.html

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