 
			 
			MCQOPTIONS
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				This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Life Sciences knowledge and support exam preparation. Choose a topic below to get started.
| 1. | Which of the following is known as scavengers in the marine ecosystem? | 
| A. | Lamprey | 
| B. | Hagfish | 
| C. | Scoliodon | 
| D. | Pristis | 
| Answer» C. Scoliodon | |
| 2. | Name the first vertebrate which possessed amniotic egg? | 
| A. | Amphibia | 
| B. | Aves | 
| C. | Reptilia | 
| D. | Mammalia | 
| Answer» B. Aves | |
| 3. | Name the phylum which is characterized by the presence of notochord. | 
| A. | Chordata | 
| B. | Hemichordata | 
| C. | Echinodermata | 
| D. | Mollusca | 
| Answer» B. Hemichordata | |
| 4. | NAME_THE_PHYLUM_WHICH_IS_CHARACTERIZED_BY_THE_PRESENCE_OF_NOTOCHORD.?$ | 
| A. | Chordata | 
| B. | Hemichordata | 
| C. | Echinodermata | 
| D. | Mollusca | 
| Answer» B. Hemichordata | |
| 5. | Which of the following is known as scavengers in the marine ecosystem?$ | 
| A. | Lamprey | 
| B. | Hagfish | 
| C. | Scoliodon | 
| D. | Pristis | 
| Answer» C. Scoliodon | |
| 6. | Name_the_first_vertebrate_which_possessed_amniotic_egg?$ | 
| A. | Amphibia | 
| B. | Aves | 
| C. | Reptilia | 
| D. | Mammalia | 
| Answer» B. Aves | |
| 7. | Which of the following phylum has a water vascular system? | 
| A. | Plantae | 
| B. | Mollusca | 
| C. | Echinodermata | 
| D. | Hemichordata | 
| Answer» D. Hemichordata | |
| 8. | In arthropods, Ecdysis or moulting is a process of casting off the skin. | 
| A. | True | 
| B. | False | 
| Answer» B. False | |
| 9. | Which organism has segmental nephridia for excretion and osmoregulation? | 
| A. | Platyhelminthes | 
| B. | Aschelminthes | 
| C. | Annelida | 
| D. | Arthropoda | 
| Answer» D. Arthropoda | |
| 10. | Intestinal fluke disease is caused by phylum__________ | 
| A. | Ctenophora | 
| B. | Platyhelminthes | 
| C. | Annelida | 
| D. | Aschelminthes | 
| Answer» C. Annelida | |
| 11. | Which of the following is causative agent of Trichionosis? | 
| A. | Trichinella spiralis | 
| B. | Oxytricha trifallax | 
| C. | Morus nigra | 
| D. | Agrodiaetus shahrami | 
| Answer» B. Oxytricha trifallax | |
| 12. | Name the organism which has flame-cell in its excretory system? | 
| A. | Corals | 
| B. | Ctenophora | 
| C. | Roundworm | 
| D. | Flatworm | 
| Answer» E. | |
| 13. | Name the phylum which has a single opening for taking food and throwing out faeces? | 
| A. | Coelenterate | 
| B. | Porifera | 
| C. | Annelida | 
| D. | Aschelminthes | 
| Answer» B. Porifera | |
| 14. | Which of the following phylum is known for its asymmetrical body shape? | 
| A. | Mollusca | 
| B. | Arthropoda | 
| C. | Annelida | 
| D. | Porifera | 
| Answer» E. | |