Which cell structure is mainly responsible for releasing energy from food molecules in some single-celled organisms? 1.ribosome2.chloroplast3.cell membrane4.mitochondrion?

ecotourism pay for conservation efforts.

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology

c. the initial amount of money placed in the savings account