How are boundaries, stress and faults all related? which is the most dangerous and why?

Which prevent errors in dna replication? a. helicase enzyme checks the dna for errors. b. each base can attach to only one other type of base. c. ribosome enzymes prevent errors from happening. d. dna contains no complementary base pairs.

What environmental cues and landmarks do the geese use to determine the timing and direction of their migration over the mountains? how do they find their way?

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water