Question

plz explain all dont give nonsence answer and plz give answer of all question if you dont know all answer dont give answer plz tell fast plz(CLASS 9 CBSE BIOGLOGY)
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(1) Name bacteria responsible for peptic culceus
(2) Name the scientist who discovered the positive agent of peptic culceus
(3) Explain SARS?
(4) what is technical name of Round worm
(5) Name the diseases caused by
.Virus
. Bacteria
. Fungi
. Protozoa
. Worm
(6) What is diffrence between Residing habits of virus and bacteria
(7) How Antibiotic work? Explain this with the help of antibiotic penicillin
(8) Why penicillin is not effective against viral infection
(9) Name the disease which spread throught
. Air
. Water
(10) How AIDS spread
(11) How Malariea spread
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Answer 1

1. Helicobacter pylori bacteria
2. Barry Marshall and Robin Warren discovered that peptic ulcer disease (PUD) was primarily caused by Helicobacter pylori
3. Severe acute respiratory syndrome (SARS) ia a respiratory disease that spreads by close person-to-person contact.The virus that causes SARS is thought to be transmitted most readily by respiratory droplets (droplet spread) produced when an infected person coughs or sneezes.
4. scientific name-NEMATODA
5. VIRUS- chiken pox   BACTERIA-typhoid   FUNGI-Aspergillosis   PROTOZOA-malaria    WORM-filariasis

     8.Antibiotics are useless against viral infections. This is because viruses    are so simple that they use their host cells to perform their activities for them. So antiviral drugs work differently to antibiotics, by interfering with the viral enzymes instead.

     9.AIR-Tuberculosis    WATER-Cholera