1. Write the beneficial actions of :
(a) bacteria
(c) algae
(b) fungi
Answers
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a. Bacteria -
1. Bacteria like E Coli live in the human intestine and help in digestion of food.
2. Rhizobium, a bacteria helps in nitrogen fixation.
3. Lactobacillus, bacteria, helps in the formation of curd.
b. Fungi -
1. Yeast, which is a fungi, is used in making breads, cakes and also used in the production of alcohol.
2. Some fungi are used in making antibiotics ; such as Penicillin, which is obtained from the fungus Penicillium.
3. Mushroom which belongs to the fungi category can be eaten.
c. Algae -
1. Algae like chlorella are rich in proteins and are used as food supplements.
2. Diatoms, which are a type of algae, are used in making glass and porcelain because hey are made of silica and calcium.
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Answer:
a Bacteria like Recoil live in human intestine for digestion of food
b.like other plant grow in nature these algae also grow in nature and they also inhale co2 and exhale o2
C.they are useful to us as a source of food and as a fundamental help for different sorts of nourishment