9th Biology Chapter2 Solving a biological problem
| Sr # | Questions | A | B | C | D |
|---|---|---|---|---|---|
| 1 | Which disease has killed more people than any other disease? | AIDS | Cancer | Typhoid | Malaria | 2 | Tentative explanation of observations is: | Theory | Deduction | Hypothesis | Result | 3 | Most basic step of biological method? | experimentation | obserbvation | hypothesis | deductions | 4 | Ross found mosquitoes multiplying in | Salivary gland | Blood | Stomach | Both 1 & 3 | 5 | Mosquito that transmits dengue fever: | Anopheles | Culex | Aedes | Female anopheles mosquito | 6 | In which century America was discovered? | 16 | 17 | 18 | 19 | 7 | Quinine is obtained from: | Cinchona bark | Quina-Quina bark | Both 1 & 2 | None of these | 8 | 9 | Malaria fever spread due to: | Amoeba | Plasmodium | Paramecium | Virus | 10 | Word “mala” means: | Air | Bad | Poor | Both 1 & 2 | 11 | Blood clotting in food canal of mosquito is prevented by: | Saliva | Lymph | Platelets | All of these | 12 | Malaria spread in birds by: | Aedes | Culex | Dengue | Anopheles | 13 | Malaria is caused by: | Plasmodium | Entamoeba | Paramecium | E. coli | 14 | Which one of the following is not the characteristic of good hypothesis? | Must be correct | Must have testable | Must be consistent with available data | Must have prediction | 15 | A theory is supported by a great deal of: | Result | Observation | Evidence | Experiment | 16 | The hypothesis that stands the test of time are called: | Observations | Theories | Deductions | Experiments | 17 | Summarizing data through the calculation of a mean value: | Physics | Economics | Mathematics | Statistics | 18 | Plasmodium is transferred by: | Virus | Fly | Bacteria | Mosquito | 19 | Proportion is expressed by putting a sign: | = | : : | both 1 & 2 | : | 20 | An irrefutable theory: | Hypothesis | Law | Deduction | All of these | 21 | Effective drug for treating malaria: | Quinine | Panadol | Paracetamol | Aspirin |