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Aleksandr [31]
3 years ago
14

researchers conducted an experiment to identify the effects of three different hand sanitizer on the growth of bacteria the rese

archers grew one type of bacteria and 24 identical covered Petri dishes then they open 18 Petri dishes and applied for three hand sanitizers to six Petri dishes Beach they left the remaining six Petri dishes closed as a control when the researchers measure the growth of bacteria 2 Days Later the six dishes that had no hand sanitizer showed the least amount of bacterial growth the researchers concluded that not using any hand sanitizer would lead to the least bacterial growth which statement best explains why the researchers conclusions were not justified
Biology
1 answer:
lesya692 [45]3 years ago
7 0
Your question is rather unclear but from what I can tell either there were not an even amount of Petri dishes or some of them were left open while others were not.
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Gregor mendel is a scientist, he was bored 20th July,1822. He carried out an experiment using pea plant and he is reffer to as the father of genetist. Mendel used seven traits of the pea plant in his experiments this include flower color which is either purple or white, flower position which is either axil or terminal stem length which could be long or short, seed shape (round or wrinkled), seed color (yellow or green), pod shape (inflated or constricted) and pod color (yellow or green). He uses pea plant because of the following reason,

pea plant has many observable characteristics that could be used such as flower colors,seed shape.

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The experiment with pea pant would produce enough seeds for subsequent generation.

This experiment made Mendel propound 2 laws, law of segregation of gene and law of Independent assortment of gene.

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