What are the three main objectives when editing a document? A correcting punctuation errors
B rearranging some of the points
C correcting improper sentence structures
D removing irrelevant content
E correcting spelling mistakes

D B C

Explanation:

Because you want the document to be easily presented and easy to read and make sure it is relevant to the topic

answer: life tends to copy things that already exists rather than taking old ides and making it into something new

explanation:

the krebs cycle and electron transport occur in the mitochondria, though other than that i would need to know more information.