True, our ecosystem is not independent. Everything depends on everything else to survive. :)
Answer:
A mutation is a change that occurs in our DNA sequence, either due to mistakes when the DNA is copied or as the result of environmental factors such as UV light and cigarette smoke. Mutations can occur during DNA replication if errors are made and not corrected in time.
Them the solution is hypertonic. This means that the water within the cell would exit it and go outside and the cell would shrink.
4 is c and 5 I think is a
