Question

Leeuwenhous Chicken poxiscus
(b) Antonie van
(d) John Dalton
A Tick (/) the correct option:
1. The first living organism was observed by
(a) Robert Hooke
(c) Robert Brown
2. The smallest of all micro-organims are :
(a) virus
(c) mycoplasmas
3. The fungi are
(a) autotrophic
(c) both of these
4. Tuberculosis is caused by a :
(a) virus
(c) fungi
5. The method of preserving food by drying it in sun is called :
(a) salting
(b) freezing
(c) dehydration
(b) bacteria
(d) algae
in their mode of nutrition :
(b) heterotrophic
(d) none of these
7 Vinegar is a
8. Disease causing
Match the words in
Column A
1. Natural preservat
2 Chemical preser
3
Dehydration
4. Increasing tem
5. Lowering teme
Write (T) agains
1. Robert Hook
2. Virus can be
3. Penicillium
(b) bacteria
(d) protozoa
(d) canning
4. Food said
6. Which process help milk to last longer but still does not kill all the microbes 5. Vaccine is
(b) fermentation
(d) sterilisation
(a) pasteurisation
(c) vaccination
BJECTIVE
Answer the
7. The micro-organisms responsible for maintaining soil fertility and in recycling
1. Name
are :
(b) bacteria and viruses
(d) algae and fungi
2. Name
3. Write
(a) bacteria and fungi
(c) bacteria and mycoplasmas
8. The malaria is transmitted by the :
(a) tse-tse fly
(C) house fly
4. Nam
(b) female anopheles mosquito 5. Nan
(d) male anopheles mosquito
6. Na
7. ME​

Answer 1

Pura question paper he dal diya ??

Answer 2

Answer:

well as being the father of microbiology, van Leeuwenhoek laid the foundations of plant anatomy and became an expert on animal reproduction. He discovered blood cells and microscopic nematodes, and studied the structure of wood and crystals. He also made over 500 microscopes to view specific objects.