Question

Write 5 examples to show ?
a) Micra organisims are our friends.
b) Micra organisims are our for
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Answer 1

Answer:

They are used in winemaking, baking, pickling and other food-making processes.

Alcoholic fermentation by yeast is widely used in the preparation of wine and bread.

A bacterium Lactobacillus promotes the formation of curd.

Microbes are used to reduce pollution.

They are used to increase soil fertility by fixing atmospheric nitrogen.

Microbes are also useful in preparing many medicines and antibiotics.

Certain microbes are also used in the biological treatment of sewage and industrial effluents.

Some microorganisms are taken as probiotics, that are believed to provide health benefits when consumed.

Bacteria are also involved in making cheese.

Acetobacter acetic is used for producing acetic acid from alcohol

Answer 2

Explanation:

Arranging the data in ascending order, we get: 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3 We find that: 1 occurs 6 times 2 occurs 10 times 3 occurs 4 times Therefore, The frequency of families having 1 child is 6 The frequency of families having 2 children is 10 The frequency of families having 3 children is 4