What other adaptation could have koalas as they evolved from land dwellers to tree dwellers?
the ability to have several offspring at one time
fur color that closely matches the eucalyptus bark color
longer hind legs that allow for faster running
better ability to communicate with their peers
ant

The answer is c. they had seedshope this

Fungi is were it belongs

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.