The structure of cells has changed significantly overtime. what concept explains the presence of mitochondria in cells?

Look at the photo of the leaf. which term best describes this leaf?

Producing disposable grocery bags consumes resources. recycling disposable bags is a solution that can recover some of the resources used to make new bags. which of the following behaviors could further refine the solution? a. disposing of bags by burning them b. reusing bags whenever possible c. using bags at once so that they do not break d. using only nonrenewable materials to make new bags subject is environmental science for apex users

Witch theory suggests all living things are made up of cell or cells