Question

I
[
2.
[
D) everywhere
D) Protozoa
[
6.
D) Both A and C
Small umbrella like growths over rotten materials of dumped wastes are included under
Choose the correct answer:
1.
The algae that can be seen with unaided eye from the following:
7.
A) Chara
B) Chlamydomonas C) Spirogyra
Microorganisms are present :
A) in the soil
C) in the air
B) in the water
3.
A) Algae
B) Fungi
C) Bacteria
4.
Bacteria present in our intestine help in :
A) excretion
B) absorption C) digestion
D) none of these
5. Excess use of
kills soil bacteria.
[
A) pesticides
B
B) fertilizers
C) manures
D) all of these
6. The bacterium that can be seen with unaided eye is :
A) Thiobacillus B) Thiomargarita C) Thionambia
D) Lactobacillus
7. Pick the odd one out.
A) Cyclops
[
B) Daphnia
C) Ceratium
D) Eyelash mite
8. The process of conversion of bigger compounds of biomass to smaller compounds is : [
A) decomposition B) purification C) fermentation D) none
Viruses reproduce only in a :
A) host cell
B) living cell C) bacterium
[
2. Viruses are extremely small and can be seen the
D) all the above
2.​

Answer 1

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