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sophiamoser
17.04.2020 •
Biology
Process in which nature favors a particular trait or phenotype leading to an increase in the frequency of that trait occurring.
A. Adaptation
B. Natural Selection
C. Punctuated Equilibrium
D. Homologous Structure
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Ответ:
natural selection
Explanation:
Ответ:
Explanation:
Let "X" denotes weight of powder 1 added to the new mixture and "Y" denotes weight of powder 2 added to the new mixture
Total weight of vitamin B1 in the mixture is equal to
mg
Total weight of vitamin B2 in the mixture is equal to
mg
Equation 1
Equation 2
Let us simplify the above two equations, we will get
Substituting value of X in equation 2 we get