forest ecosystem&quot; 1 means an ecosystem in which trees are or are capable of being a major biological component;
(1; means; an ecosystem in which trees are or are capable of being a major biological component) (trees; are; L:an ecosystem) (trees; are; capable of being a major biological component; L:an ecosystem)
1 trees trees
means are are
an ecosystem in which trees are or are capable of being a major biological component
L:an ecosystem
capable of being a major biological component L:an ecosystem