MCQOPTIONS
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MCQOPTIONS
This section includes 57 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Mcqs knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Aschelminthes is also known as |
| A. | Protozoans |
| B. | Eumatazoa |
| C. | Nematodes |
| D. | Protoctist ancestors |
| Answer» D. Protoctist ancestors | |
| 2. |
All of the following are coelomates except |
| A. | Deuterosomes |
| B. | Proterosomes |
| C. | Hemichordates |
| D. | Aschelminthes |
| Answer» E. | |
| 3. |
The name animal is derived from the word. |
| A. | Anima |
| B. | Anemia |
| C. | Aname |
| D. | All of these |
| Answer» B. Anemia | |
| 4. |
The radial symmetry is found in the animals of |
| A. | Protozoa |
| B. | Porifera |
| C. | Cnidaria |
| D. | All of these |
| Answer» D. All of these | |
| 5. |
All the animals of the grade radiata are |
| A. | Diploblastic |
| B. | Triploblastic |
| C. | Both |
| D. | Unicellular |
| Answer» B. Triploblastic | |
| 6. |
Coelom that develops from the archenteron as outpouching is |
| A. | Pseudocoelom |
| B. | Enterocoelom |
| C. | Schizocoelom |
| D. | None of these |
| Answer» C. Schizocoelom | |
| 7. |
Both radial and bilateral symmetry is found in the phylum |
| A. | Protozoa |
| B. | Porifera |
| C. | Echinodermata |
| D. | None of these |
| Answer» D. None of these | |
| 8. |
The animals in which coelom is formed due to splitting of mesocerm are known as |
| A. | Pseudocoelous |
| B. | Schizocoelous |
| C. | Enterocoelous |
| D. | Emphicoelous |
| Answer» C. Enterocoelous | |
| 9. |
Of the following which one is not found in series proterostomia. |
| A. | Annelida |
| B. | Arthropoda |
| C. | Mollusea |
| D. | Echinodermata |
| Answer» E. | |
| 10. |
In some cases the blastomere can produce complete embryo the cleavage will be |
| A. | Spiral and determinate |
| B. | Radial and indeterminate |
| C. | Spiral and indeterminate |
| D. | Radial and determinate |
| Answer» C. Spiral and indeterminate | |
| 11. |
The fate of each blastomere is foretold. The cleavage will be as |
| A. | Spiral and indeterminate |
| B. | Radial and indeterminate |
| C. | Radial and indeterminate |
| D. | Spiral and determinate |
| Answer» E. | |
| 12. |
In most triploblasts after embryonic development the three layers are represented as |
| A. | Separate layers of cells |
| B. | Structures formed from them |
| C. | Structures associated with them |
| D. | Their functions in body |
| Answer» C. Structures associated with them | |
| 13. |
The skeleton of sponges is made up of |
| A. | Calcium |
| B. | Silica |
| C. | Both of these |
| D. | None of these |
| Answer» D. None of these | |
| 14. |
Sperms released in water are carried to the mesenchyme in sponges by |
| A. | Amoeboid cell |
| B. | Stipules |
| C. | Spicules |
| D. | Spines |
| Answer» B. Stipules | |
| 15. |
Gut in pseudocoelomates is made from |
| A. | Ectoderm |
| B. | Mesoderm |
| C. | Endoderm |
| D. | All of these |
| Answer» D. All of these | |
| 16. |
In sponges fertilization takes place in |
| A. | Ectoderm |
| B. | Mesenchyme |
| C. | Endoderm |
| D. | Uterus |
| Answer» C. Endoderm | |
| 17. |
The single main opening of the sponge cavity is |
| A. | Osculum |
| B. | Ostia |
| C. | Spongocoel |
| D. | None of these |
| Answer» B. Ostia | |
| 18. |
Enteron in coelenterates acts as |
| A. | Digestive cavity |
| B. | Body cavity |
| C. | Transporting cavity |
| D. | All of these |
| Answer» E. | |
| 19. |
Exoskeoeton of coelenterates terates is made up to |
| A. | Calcium |
| B. | Silica |
| C. | Chitin |
| D. | Both A & B |
| Answer» B. Silica | |
| 20. |
All of the following coelenterates show alternation of generation except |
| A. | Hydra |
| B. | Obelia |
| C. | Aurelia |
| D. | None of these |
| Answer» B. Obelia | |
| 21. |
All of the following are tue for platyhelminthes except |
| A. | Flatwarms |
| B. | Triploblastic |
| C. | Coelomate |
| D. | Bilateral symmetry |
| Answer» D. Bilateral symmetry | |
| 22. |
Excretory system of platyhlminthes consists of |
| A. | Nephridia |
| B. | Flame cells |
| C. | Malpighian tubules |
| D. | Nephrons |
| Answer» C. Malpighian tubules | |
| 23. |
Free living example of platyhelminthes is |
| A. | Dugesia |
| B. | Fasciola |
| C. | Taenia |
| D. | None of these |
| Answer» B. Fasciola | |
| 24. |
Psedudocoelom is character of |
| A. | Coelenterates |
| B. | Platyhelminthes |
| C. | Aschelminthes |
| D. | Annelids |
| Answer» D. Annelids | |
| 25. |
Notochord is present throughout life in |
| A. | Urochordates |
| B. | Cephalochordates |
| C. | Chordates |
| D. | Vertebrates |
| Answer» C. Chordates | |
| 26. |
Body is eel like in |
| A. | Cyclostomata |
| B. | Chondrichthyes |
| C. | Osteichthyes |
| D. | None of these |
| Answer» B. Chondrichthyes | |
| 27. |
Shell of egg is leathery in appearance in |
| A. | Amphibians |
| B. | Reptiles |
| C. | Birds |
| D. | Prototherians |
| Answer» C. Birds | |
| 28. |
Mammals became dominant in |
| A. | Proterozoic era |
| B. | Mesozoic era |
| C. | Paleozoic era |
| D. | Cenozoic era |
| Answer» E. | |
| 29. |
Pin warm is common name used for |
| A. | Rhabditis |
| B. | Enterobius vermicularis |
| C. | Ancylostoma duodenale |
| D. | Taenia solium |
| Answer» C. Ancylostoma duodenale | |
| 30. |
Marine example of annelid is |
| A. | Neries |
| B. | Stylaria |
| C. | Earthworm |
| D. | Leech |
| Answer» B. Stylaria | |
| 31. |
The organs of locomotion in annelids are |
| A. | Muscles |
| B. | Hydrostatic skeleton |
| C. | Parapodia |
| D. | Setae |
| Answer» E. | |
| 32. |
_______ are believed to have common origin with annelids. |
| A. | Nematods |
| B. | Arthropods |
| C. | Molluscs |
| D. | None of these |
| Answer» C. Molluscs | |
| 33. |
Polychaeta have |
| A. | Tentacles |
| B. | Palps |
| C. | Eyes |
| D. | All of these |
| Answer» E. | |
| 34. |
Aquatic arthropods respire through |
| A. | Spiracles |
| B. | Gills |
| C. | Book lungs |
| D. | Both b and c |
| Answer» E. | |
| 35. |
Main blood vessel of arthropods usually |
| A. | Lies on dorsal side |
| B. | Lies on ventral side |
| C. | Lies on lateral side |
| D. | Is not present |
| Answer» B. Lies on ventral side | |
| 36. |
True metamorphosis is not present in |
| A. | Crustacea |
| B. | Insecta |
| C. | Arachnida |
| D. | Myriapoda |
| Answer» D. Myriapoda | |
| 37. |
Second largest phylum of invertebrates is |
| A. | Porifera |
| B. | Arthropoda |
| C. | Mollusca |
| D. | Chordata |
| Answer» D. Chordata | |
| 38. |
Mantle in molluscs is present over |
| A. | Head |
| B. | Ventral muscular foot |
| C. | Dorsal visceral region |
| D. | All of these |
| Answer» D. All of these | |
| 39. |
Circulatory system is open type in all of the following except |
| A. | Arthropoda |
| B. | Gastropoda |
| C. | Pelecypoda |
| D. | Cephalopoda |
| Answer» E. | |
| 40. |
Body is globular in |
| A. | Cake urchin |
| B. | Sea Urchin |
| C. | Sea cucumber |
| D. | Brittle star |
| Answer» C. Sea cucumber | |
| 41. |
Prechordates is another name used for |
| A. | Echinoderms |
| B. | Hemichordates |
| C. | Vertebrates |
| D. | Chordates |
| Answer» C. Vertebrates | |
| 42. |
Nervous system of nematods consists of |
| A. | Ventral nerve cord |
| B. | Dorsal nerve cord |
| C. | Lateral nerve cord |
| D. | All of these |
| Answer» E. | |
| 43. |
Which system is present in nematods? |
| A. | Sac - like digestive system |
| B. | Tube - like digestive system |
| C. | Circulatory system |
| D. | Respiratory system |
| Answer» C. Circulatory system | |
| 44. |
Of the following which one is not the characteristic of triploblasts. |
| A. | All of them have blood vascular system |
| B. | They may be coelomate pseudocoelomate or acoelomate |
| C. | They are included in grade bilateria |
| D. | All of them have digestive system |
| Answer» B. They may be coelomate pseudocoelomate or acoelomate | |
| 45. |
The system well developed in the acoelomate is |
| A. | Excretory system |
| B. | Nervous system |
| C. | Both of these |
| D. | Transport system |
| Answer» D. Transport system | |
| 46. |
Pseudocoelem develops from |
| A. | Blastopore |
| B. | Plastoquinone |
| C. | Blastocoel |
| D. | Splitting of mesoderm |
| Answer» D. Splitting of mesoderm | |
| 47. |
Sperms are _____ in origin. |
| A. | Ectodermal |
| B. | Mesodermal |
| C. | Endodermal |
| D. | None of these |
| Answer» C. Endodermal | |
| 48. |
The function of coelom is |
| A. | To increase the size of the animals |
| B. | To help in the functioning of reproductive system |
| C. | To provide space for the development of organs and systems |
| D. | None of these |
| Answer» D. None of these | |
| 49. |
Coelom is lined by |
| A. | Parietal mesoderm |
| B. | Visceral mesoderm |
| C. | Mesoderm |
| D. | Both A & B |
| Answer» E. | |
| 50. |
In acoelomates gut is _____ in origin. |
| A. | Ectodermal |
| B. | Endodermal |
| C. | Mesodermal |
| D. | None of these |
| Answer» C. Mesodermal | |