A field is paved over to make a road, but ten years later the road is no longer used. Over the next twenty years small grasses and flowers are able to grow, break apart the asphalt, and create a soil with more nutrients in it. What is this process an example of?

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z

Plz ! a frog has a genetic mutation in skin cells that causes part of its skin to turn orange the frog will not pass this genetic mutation onto its offspring because, a. the offspring will inherit skin cells from the other parent. b. mutated skin cells cannot divide and produce daughter skin cells. c. skin cells do not contribute genetic material to sex cells. d. parents do not contribute genetic material to their offspring.

In this experiment, the was intentionally manipulated. it is the independent variable. the dependent variables that were measured were the