How long does it take for the Marianas Trench to devour a piece of crust the size of the U. S.

In which of the following relationships is one organism always benefited while the other organism is always harmed

Use the phylogenetic tree to the right to determine which statement below is true. organisms a and f are not related. organism e is more closely related to organism b than organism f. organisms c and d are more closely related than organisms a and b. phylogenetic trees

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?