Do you mean when nucleotides get damaged or when they match to each other incoreectly? (which cuases mutants) Specialized Enzymes repair, different one respond to help different types of damage. Detail the question more, maybe then i can help more.
I am going to go with either C,A B.
I'm not entirely sure. it's just what i think
Pollution :) Since Abiotic means non living.
Bacteria: Living
Food (worms or smaller fish): Living
Predators: Living
Pollution (dirt, trash, or other stuff): Non Living
Answer:
to write a table of contents you will need to list your chapters from first to last.
Explanation:
if you have a table of contents you need to write, you can list your chapters and the page numbers in the comments and I can type it up for you.