MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
What is insulin? |
| A. | a vitamin |
| B. | a protein |
| C. | a synthetic |
| D. | an enzyme |
| Answer» E. | |
| 2. |
The mass of one Avogadro number of helium atom is..... |
| A. | 2.00 g |
| B. | 5.00 g |
| C. | 4.00 g |
| D. | 234.000 g |
| Answer» D. 234.000 g | |
| 3. |
Sound travels faster in...... |
| A. | steel |
| B. | copper |
| C. | zinc |
| D. | water |
| Answer» B. copper | |
| 4. |
The atomic weight of uranium is..... |
| A. | 123 |
| B. | 345 |
| C. | 763 |
| D. | 238 |
| Answer» E. | |
| 5. |
An element found in all organic compounds is? |
| A. | oxygen |
| B. | hydrogen |
| C. | carbon |
| D. | None of these |
| Answer» D. None of these | |
| 6. |
All of the evidence gathered by Darwin to support his theory of evolution by natural selection |
| A. | was gathered based solely on observations made during his trip to the Galapagos Islands |
| B. | was first presented in a book by Charles Lyell |
| C. | was gathered from observations made by Darwin and from information presented by others |
| D. | was presented in his book Essay on the Principle of Population |
| Answer» D. was presented in his book Essay on the Principle of Population | |
| 7. |
Which of the following statements concerning scientific hypotheses is false? |
| A. | Their consequences can be tested by different investigators. |
| B. | They are not always correct. |
| C. | They can be used to make predictions. |
| D. | They are the same as theories. |
| Answer» E. | |
| 8. |
Which of the following is not a property of life ? |
| A. | molding or adapting to one's environment |
| B. | regulating materials that enter or leave the system |
| C. | responding to stimuli |
| D. | maintaining a relatively constant internal condition |
| Answer» B. regulating materials that enter or leave the system | |
| 9. |
Of the following biological levels of organization, which represents the smallest or lowest level? |
| A. | cells |
| B. | tissues |
| C. | organs |
| D. | organisms |
| Answer» B. tissues | |
| 10. |
According to Darwin's theory of evolution is ? |
| A. | all individuals have an equal chance of surviving and reproducing |
| B. | species are immutable |
| C. | tortoises are the modern descendents of glyptodonts |
| D. | none of the above |
| Answer» E. | |
| 11. |
Deductive reasoning is ? |
| A. | determines principles from observations |
| B. | is rarely applied in science |
| C. | is always correct |
| D. | applies general principles to predict or explain specific results |
| Answer» E. | |
| 12. |
How old was Darwin when he began his voyage around the world? |
| A. | 22 |
| B. | 5 |
| C. | 30 |
| D. | 59 |
| Answer» B. 5 | |
| 13. |
Where did Darwin observe closely related species of finches and closely related species of tortorises? |
| A. | The Galapagos Islands |
| B. | the Cape Verde Island |
| C. | Patagonia, South America |
| D. | Australia |
| Answer» B. the Cape Verde Island | |
| 14. |
Which of the following pairs are analogous structures ? |
| A. | the wing of a bird and a butterfly wing |
| B. | the front flipper of a porpoise and a human arm |
| C. | the wing of a bird and a bat wing |
| D. | the front leg of a horse and a human arm |
| Answer» B. the front flipper of a porpoise and a human arm | |
| 15. |
According to the fossil record, how many times has flight evolved among vertebrates? |
| A. | 1 |
| B. | 3 |
| C. | 4 |
| D. | 5 |
| Answer» C. 4 | |
| 16. |
Using general principles to analyze specific cases is called |
| A. | artificial selection |
| B. | natural selection |
| C. | deductive reasoning |
| D. | inductive reasoning |
| Answer» D. inductive reasoning | |
| 17. |
Who wrote an essay on population growth that helped Darwin formulate his theory of evolution? |
| A. | Alfred Russel Wallace |
| B. | Thomas Malthus |
| C. | Charles Lyell |
| D. | Eratosthenes |
| Answer» C. Charles Lyell | |
| 18. |
Which of the following did not help Darwin formulate his theory of evolution? |
| A. | fossil evidence that species had changed over time |
| B. | closely related species on oceanic islands |
| C. | belief that the earth was several thousand years old |
| D. | evidence of artificial selection in domestic animals |
| Answer» D. evidence of artificial selection in domestic animals | |
| 19. |
Structures that have the same evolutionary origin even though they may now have different structures or functions are said to be |
| A. | homologous |
| B. | immutable |
| C. | analogous |
| D. | endemic |
| Answer» B. immutable | |
| 20. |
The study of the way individual traits are transmitted from one generation to the next is called |
| A. | genetics |
| B. | ecology |
| C. | cell biology |
| D. | analogy |
| Answer» B. ecology | |
| 21. |
Darwin explained his theory of evolution in a book called. |
| A. | Around the World in Eighty Days |
| B. | Survival of the Fittest |
| C. | The Principles of Population |
| D. | On the Origin of Species |
| Answer» E. | |
| 22. |
Darwin spent 5 years sailing around the world on the |
| A. | H.M.S. Beagle |
| B. | H.M.S. Evolution |
| C. | H.M.S. Tortoise |
| D. | H.M.S. Species |
| Answer» B. H.M.S. Evolution | |
| 23. |
When it was shown that animals could reproduce geometrically but didn't, Darwin concluded that ? |
| A. | the study from which the conclusions were drawn was flawed |
| B. | they failed to reach their potential because of the selective action of nature |
| C. | the mathematics was faulty |
| D. | they actually reproduce arithmetically |
| Answer» C. the mathematics was faulty | |
| 24. |
Homologous structures among animals provide evidence for evolution in that these structures are |
| A. | all shown in the fossil record |
| B. | all produced by the same gene |
| C. | similar in function, but of different basic structure |
| D. | different in different animals, but are modifications of the same basic structure |
| Answer» E. | |
| 25. |
Which of the following is not part of the scientific process? |
| A. | asking questions |
| B. | proving theories are true |
| C. | using creative insight |
| D. | making predictions |
| Answer» C. using creative insight | |
| 26. |
A successful scientific experiment will result only in _____ . |
| A. | accepting many hypotheses |
| B. | rejection of one or more hypotheses |
| C. | proving a hypothesis |
| D. | confirming predictions |
| Answer» C. proving a hypothesis | |
| 27. |
Thescientific methodinvolves all of the following except is ? |
| A. | a rigid set of logical steps |
| B. | a suspicion of what the truth might be |
| C. | an educated guess |
| D. | imagination and insight |
| Answer» B. a suspicion of what the truth might be | |
| 28. |
Which of the following diseases are transmitted from one person to another?1. Aids2. Cirrhosis3. Hepatitis4. SyphilisSelect the correct answer using the code given below: |
| A. | 1, 3, 4 only |
| B. | 1, 2, 3 and 4 |
| C. | 1 and 2 only |
| D. | 2, 3 and 4 only |
| Answer» B. 1, 2, 3 and 4 | |
| 29. |
In the study of science is ? |
| A. | deductive reasoning may be used, but inductive reasoning is preferred |
| B. | either deductive reasoning, inductive reasoning, or both may be used |
| C. | inductive reasoning may be used, but deductive reasoning is preferred |
| D. | only inductive reasoning is used |
| Answer» C. inductive reasoning may be used, but deductive reasoning is preferred | |
| 30. |
In dry regions, the leaf size of a tree becomes smaller. It is so to ? |
| A. | reduce transpiration |
| B. | reduce metabolism maintain natural growth |
| C. | maintain natural growth |
| D. | protect plant from animals |
| Answer» B. reduce metabolism maintain natural growth | |
| 31. |
Which of the following are required for the formation of bones and teeth ? |
| A. | Sodium and Calcium |
| B. | Sodium and Potassium |
| C. | Iron and Calcium |
| D. | Calcium and Phosphorus |
| Answer» E. | |
| 32. |
Which one of the following is not a plant hormone ? |
| A. | Insulin |
| B. | Cytokinin |
| C. | Ethylene |
| D. | Gibberellin |
| Answer» B. Cytokinin | |
| 33. |
which one of the following spices is a floral bud ? |
| A. | Pepper |
| B. | Clove |
| C. | Cumin |
| D. | Turmeric |
| Answer» C. Cumin | |
| 34. |
Diseases of which of the following pairs are caused by virus ? |
| A. | Malaria and Polio |
| B. | Polio and Bird Flu |
| C. | Polio and Tuberculosis |
| D. | Tuberculosis and Influenza |
| Answer» C. Polio and Tuberculosis | |
| 35. |
Azolla is often used as biofertilizer, because it is associated with . |
| A. | Blue Green Algae |
| B. | Moss |
| C. | Red Algae |
| D. | Fungus |
| Answer» B. Moss | |
| 36. |
Opium is obtained from which part of the poppy plant ? |
| A. | Unripe Fruits |
| B. | Flower |
| C. | Leaves |
| D. | Roots |
| Answer» B. Flower | |
| 37. |
Egg is rich source of nutrients except ? |
| A. | Vitamin C |
| B. | Protein |
| C. | Vitamin D |
| D. | Fats |
| Answer» B. Protein | |
| 38. |
'Biosphere Reserve Project' is aimed at protecting |
| A. | Human beings from pollution |
| B. | Flora and Fauna |
| C. | Cattle population |
| D. | Environment |
| Answer» C. Cattle population | |
| 39. |
In surgery, what is arthoplasty ? |
| A. | Open heart surgery |
| B. | Hip-joint replacement |
| C. | Kidney transplant |
| D. | Blood Transfusion |
| Answer» C. Kidney transplant | |
| 40. |
Which of the following is not a genetic disorder ? |
| A. | Irritable Bowi Syndrome (IBS) |
| B. | Down-syndrome |
| C. | Haemophilia |
| D. | Sickle cell Anaemia |
| Answer» B. Down-syndrome | |
| 41. |
Which of the following is of organic origin ? |
| A. | Ruby |
| B. | Coral |
| C. | Emerald |
| D. | Topaz |
| Answer» C. Emerald | |
| 42. |
What rays of sunlight are mostly utilized by chlorophyll in photosynthesis ? |
| A. | Red |
| B. | Yellow |
| C. | Green |
| D. | Blue |
| Answer» B. Yellow | |
| 43. |
Which of the following is not an infectious disease ? |
| A. | AIDS |
| B. | Chicken-pox |
| C. | Mumps |
| D. | Herpes Simplex |
| Answer» B. Chicken-pox | |
| 44. |
Which of the following actions is related with evaporation of sweat ? |
| A. | Endothermic Action |
| B. | Exothermic Action |
| C. | Chemical Action |
| D. | Salty Reaction |
| Answer» B. Exothermic Action | |
| 45. |
In a food chain, the solar energy utilised by plants is only ___ . |
| A. | 10 percent |
| B. | 0.1 percent |
| C. | 1 percent |
| D. | 0.01 percent |
| Answer» C. 1 percent | |
| 46. |
'Darwin finches' refers to a group of |
| A. | Birds |
| B. | Lizards |
| C. | Fishes |
| D. | Amphibians |
| Answer» B. Lizards | |
| 47. |
The tissue in man where no cell division occurs after birth is ? |
| A. | Connective |
| B. | Nerves |
| C. | Germinal |
| D. | Skeletal |
| Answer» B. Nerves | |
| 48. |
The poison of honey bee is ___ . |
| A. | Saltish |
| B. | Acidic |
| C. | Protein |
| D. | Protein |
| Answer» C. Protein | |
| 49. |
Oil which has maximum percentage of Polyunsaturated fatty acids is of. |
| A. | Coconut |
| B. | Soyabean |
| C. | Safflower |
| D. | Walnut |
| Answer» D. Walnut | |
| 50. |
Aldo sterone regulates. |
| A. | Urine concentration |
| B. | Sodium absorption |
| C. | Blood glucose |
| D. | Serum calcium |
| Answer» C. Blood glucose | |