Answer:
Selective breeding.
Explanation:
Selective breeding method is used in order to produce more bushes that have the same kind of berries. In this method, Saskatoon bush which is a wild bush can be crossed with another bush belongs to the same family so the new seeds produced having the characteristics of Saskatoon bush and is able to produce large and sweet berries just like berries of Saskatoon bush.
The answer is B.
This is because it says that the population tends to level off meaning that it stays around the same population size since it is the maximum amount of individuals that can survive.
Horsehair worms 1 or more
Nematodes 1 or more
Acanthocephala 2 or more
Annelids Leeches
