The cell membrane is said to be selectively permeable is because it allows a select few things to go through while stopping the passage of other stuff.
Answer:
B
Explanation:
They altered rocks into soil that was able to support simple plants such as grasses. This is an example of altering the environment around them to make it more habitable for other species.
photosynthesis as a whole takes place in the organelle called chloroplast but light reaction takes place in the chloroplast stroma