"ecological" is an adjective.
part of speech
The part of speech for this particular word is a noun.
adverb
what part of speech is work
what part of speech is beneath
The macrosystem is a part of the ecological systems theory from Bronfenbrenner's Ecological Systems Theory. It is the cultural environment that a child lives in.
the part of speech sashay is a averb
Did is a verb, and not is an adverb. Didn't is not any part of speech. It's a contraction of did and not.
Adjective
The word speech is a noun.
No, but it's part of a noun which the noun is the part of speech.
Yes, conjunction is a part of speech.