B. Every ecosystem has weather
It may either be man#1 with blood group b or man#2 with blood group ab
descriptive statistics sum of all numbers divided by the total number of scores; the average = mean
the number that occurs the most often in a given set of number = mode
relationship between two variables = correlation
the middle number in a set of ordered numbers = median
Answer:
Selective breeding is when a human or farmer in this case selects two plants or chickens with the best traits in order to get a good yield and quality for the products they are producing. I hope this helps!
