Which of the following is not a characteristic of all life?

question 1 options:

a) reproduction

b) use of energy

c) ability to move

d) ability to respond to change

before it leaves the nucleus of a eukaryotic cell, mrna is altered in the following ways: - a cap is added to the 5' end of the mrna molecule; - a poly a tail is added to the 3' end; - introns are removed and exons are spliced together.