Question

Give all answer of the exercise ​

Answer 1

☢Question☢

Give all answer of the Exercise?

❂Answer❂

1. fill in the blanks.

(a) Microorganisms can be seen with the help of a microscope.

(b) Blue green algae fix nitrogen directly from air and enhance fertility of soil.

(c) Alcohol is produced with the help of Yeast.

(d) Cholera is caused by Bacteria.

2. tick the correct option.

(A) ☞ (2) Alcohol

(B) ☞ (2) streptomycin

(C) ☞ (1) female anopheles mosquito

(D) ☞ (2) Housefly

(E) ☞ (3) growth of yeast cells

(F) ☞ (3) Fermentation

3. Match the organisms in column A with their actions in column B.

1. Bacteria ☞ Causing cholera

2.Rhizobium ☞ fixing nitrogen

3. Lactobacillus ☞ setting of curd

4. Yeast ☞ Baking of bread

5. A protozoan ☞ Causing malaria

6. A virus ☞ causing AIDS

4. can microorganism we seen with naked eye? if not ,how can they be seen ?

☞ yes, we can't see microorganisms with naked eye because it is too small and we can see microorganisms only with microscopes.

❂ _______________❂__________________❂

Answer 2

Answer:

1)a: Microscope

b: Nitrogen

c: Fermentation

d: Vibrio cholera

2)a:alchohol

b: streptomycin

c: female Anopheles mosquito

d: housefly

e: growth of yeast

f: fermentation

3)Bacteria-causing cholera

Rhizobium- Nitrogen fixing

Lactobacillus- Setting of bacteria

Yeast-baking bacteria

A protozoan-causing malaria

A virus - causing AIDs

4)No, micro-organismes can not be seen by naked eyes because they are very small. They can only be seen with the help of a microscope.

Explanation:

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