The part of a plant or animal cell that produces energy for the cells and tissues is the O Cell membrane
O Mitochondria
O Cytoplasm
O Nucleus

Which of these organisms have the greatest amount of cell specialized

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?