A.Old Trees Communicate Like Humans |
B.Young Trees Are In Need Of Protection |
C.Trees Contribute To Our Society |
D.Trees Are More Complex Than You Think |
A.compete for survival | B.protect their own wealth |
C.depend on each other | D.provide support for dying trees |
A.“mother trees” are usually of no use to other trees. |
B.Charles Darwin had the same thought as Simard. |
C.if “mother trees” are cut down, the survival for the entire forest will be affected. |
D.people know much about the complex “tree societies”. |
A.how “tree societies” work |
B.how trees grow old |
C.how forestry industry develops |
D.how young trees survive |