Can anyone help me identify this crystal? Plz help. It’s dark green and has like a small line of brown and it has a little bit of sparkle in it

Ineed a chemical reaction takes place in which erlergy is released. arrange the reaction's characteristics in order from start to finis lower energy of reactants higher energy of products higher energy of reactants transition state sd lower energy of products

How energy flows through each level in this energy pyramid. is all the matter and energy from one level transferred to the next level?

Explain the significance of meiosis in sexual reproduction