My suggestion:
What is a phone tree, you ask?
It should be:The Magnolia tree is...
the sentence should be like this........."The rabbit ran under the tree", said Bob.
No, "mastic tree" is not typically capitalized unless it is at the beginning of a sentence or part of a title.
The noun is tree, a word for a thing.
A conifer tree is a cone bearing tree. An example sentence would be: The pine tree is a conifer tree.
The nouns in the sentence are tree and the compound noun backyard.
I'm not sure if this is what you need, but an example of a sentence fragment containing the word tree is below. The bird in the tree. (This is a sentence fragment and not a complete sentence because there is no verb (action word).
The structure of the sentence "tree diagramming" is a noun phrase consisting of the noun "diagramming" modified by the noun "tree."
The phone number of the Marked Tree Public Library is: 870-358-3190.
The phone number of the Joshua Tree Branch Library is: 760-366-8615.
The phone number of the Marked Tree is: 781-444-6287.
No, this sentence is in the active voice. In passive voice, it would be "The tree was planted."