MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which among the following is incorrect about types of digestive system in animals? |
| A. | A digestive system with one opening to outside is called incomplete digestive system |
| B. | A digestive system with separate openings for ingestion and egestion is called complete digestive system |
| C. | Platyhelmenthes have a complete digestive system |
| D. | Sea sponges have an incomplete digestive system |
| Answer» D. Sea sponges have an incomplete digestive system | |
| 2. |
Mesoderm gives rise to ______ |
| A. | Muscular tissues |
| B. | CNS |
| C. | Urinary bladder |
| D. | Skin |
| Answer» B. CNS | |
| 3. |
Which among the following is incorrect about arrangement of cells in embryo? |
| A. | The word “blasted” derives its origin from the word blastula which means a hollow ball of cells formed during the early stage of embryo |
| B. | If the number of cell layers in blastula is two in number, i.e. ectoderm and endoderm, then such organisms are considered to diploblastic |
| C. | If the number of cell layers in blastula is three in number, i.e. ectoderm, mesoderm and endoderm, then such organisms are considered to triploblastic |
| D. | In diploblastic organisms, mesoglea, a well differentiated substance, is present between endoderm and ectoderm |
| Answer» E. | |
| 4. |
Sponges are ______ |
| A. | Asymmetrical |
| B. | Radially Symmetrical |
| C. | Bilaterally symmetrical |
| D. | Bimedially symmetrical |
| Answer» C. Bilaterally symmetrical | |
| 5. |
Which among the following is incorrect about circulatory system in different animals? |
| A. | In open circulatory system, blood is pumped by heart into blood cavity |
| B. | In closed circulatory system, blood is enclosed in blood vessels |
| C. | Interstitial fluid is separated from blood in the case of closed circulatory system |
| D. | Closed circulatory system is exhibited by arthropods |
| Answer» E. | |
| 6. |
In a closed circulatory system, interstitial fluids and blood has no specific distinction and therefore called as hemolymph. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Which among the following is incorrect about organ system level of organization? |
| A. | Organs group to form organ systems |
| B. | Each and every organ system are specialized to perform a specific physiological activity |
| C. | Annelids exhibit this level of organization |
| D. | All of these animals have a cavity between their digestive tract and body wall called as coelom |
| Answer» E. | |
| 8. |
Platyhelmenthes exhibit organ level of organization. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Which among the following is incorrect about tissue level of organization? |
| A. | Cells performing same functions group together to form a tissue |
| B. | Organs are absent |
| C. | Planaria exhibits this level of organization |
| D. | Cells are specialized with division of labour |
| Answer» D. Cells are specialized with division of labour | |
| 10. |
Which among the following is incorrect about cellular level of organization? |
| A. | A group of cells combine to form the whole body |
| B. | Each cell carries over a specific function |
| C. | This level of organization is also called as cell aggregate of body plan |
| D. | Hydra exhibits this level of organization |
| Answer» E. | |
| 11. |
Which among the following is incorrect about levels of organization in animals? |
| A. | Cells are organized in different ways to form the basic body in animals |
| B. | Cellular level of organization refers to the cluster of the cells that combine to form an animal body |
| C. | Tissue level of organization refers to the way tissues combine to form organs which in turn form animal body |
| D. | In organ system level of organization, various organs of the system work coordinately to achieve a specific function |
| Answer» D. In organ system level of organization, various organs of the system work coordinately to achieve a specific function | |
| 12. |
Which among the following is not the basis of classification in Animalia? |
| A. | Segmentation |
| B. | Symmetry |
| C. | Mode of nutrition |
| D. | Levels of organization |
| Answer» E. | |