Answer:
I think this means that the dead wood (useless/burdensome people or things) are the same anywhere they are. So the useless are useless not only in one situation but useless all around.
Explanation:
Example: He cut the "deadwood" from the group. So he is getting rid of the useless people in the group.
Answer: situated on the inside
Log is the object of the preposition because under is a preposition.
Answer:
I am sorry I didn't understand your question
