Answer:
you don't have to worry about replacing them or watering them
Explanation:
Scientists most often produce new genetic variations of organisms by causing mutations with radiation or chemicals and then selectively breeding in order to emphasize the desired traits in the new variations. The Dachshund is an example of this. By breeding two dogs with a similar mutation that caused student legs and elongated backs breeders were able to create a new variation not found in nature.
Those are examples of ecosystem services! Hope this helps:)
Answer:
A animal 2b has no cell wall