7.
3
8.
Aut mojotie o homol. Do you agree? Give read
Whe
6.
6.
4 Which of these are closer to plants-algae or protozoa? In what aspect? algas beraus it m
do you normally expect to find algae-in the soil, in a pond or in the air? Pound becaus
While Making Cake or ahokia, the dough rises because of a substance that is produced during t
fermentation. What substance is this? Why does it cause the dough to rise?
To prevent a disease caused by a certain microbe, doctors inject the same microbes in a
person's blood. How is it ensured that this prevents the disease instead of causing it? What is th
process of injecting microbes called?
Microbes that live inside the bodies of animals normally cause diseases. However some of th
also help animals. Give an example to prove this point
9. Pasteurization means boiling the milk to kill germs. Do you agree? Give reasons.
10. Which of the following cannot be classified as either living or non-living?
6. do not have a cellular structure
Give one property because of which viruses are regarded as being on the borderline of living and
non-living
(a) fungi
(b) bacteria
(g) viruses
(d) protozoa
11. Amoeba is a
(a) bacterium.
(b) virus.
(c) fungus.
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