ecology vs succession

ecology and succession both are nouns.

Word	Noun	Adjective	Verb	Adverb
ecology	Yes	No	No	No
succession	Yes	No	No	No

ecology (noun)	succession (noun)
the branch of biology concerned with the relations between organisms and their environment	the action of following in order
the environment as it relates to living organisms	acquisition of property by descent or by will
	a following of one thing after another in time
	a group of people or things arranged or following in order
	(ecology) the gradual and orderly process of change in an ecosystem brought about by the progressive replacement of one community by another until a stable climax is established