echavarrianoah
01.10.2019 •
Biology
Suppose you have a population of 150 butterflies, but a wildfire devastates the population and only 24 butterflies survive. what percent does the colony decrease by?
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Ответ:
The colony decrease by
%
Explanation:
Given -
Total population of butterflies before devastation (P)
Total Population of butterflies that survived after the devastation
Total population of butterflies that did not survived
Substituting the given values in above equation, we get-
Total population of butterflies that did not survived
Percentage by which the butterfly colony decreased
%
Ответ:
It is a right method for making a variety.
Explanation:
This is the right method for making sweet apples variety because in apple, cross pollination occurs and for making a new variety self pollination is the best way to prevent impurities in making a new variety. Due to self pollination, the farmer gain the sweet apple variety which help them to make more money by selling these sweet apple because of its demand.