Q 1. Which statement about agroecosystems is true? • Monoculture decreases the use of chemicals.
• Agriculture does not change the natural environment.
• Agroecosystems have low species and habitat diversity.
• Agroecosystems are similar to natural ecosystems.

1. cannot2. laws3. theories

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.