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Animal’s Classification Multiple Questions and Answers.
| 6. | 6. Which organism has segmental nephridia for excretion and osmoregulation? | ||
| A. | a) Platyhelminthes | ||
| B. | b) Aschelminthes | ||
| C. | c) Annelida | ||
| D. | d) Arthropoda | ||
| 7. | 8. Which of the following phylum has a water vascular system? | ||
| A. | a) Plantae | ||
| B. | b) Mollusca | ||
| C. | c) Echinodermata | ||
| D. | d) Hemichordata | ||
| 8. | 9. Name the phylum which is characterized by the presence of notochord. | ||
| A. | a) Chordata | ||
| B. | b) Hemichordata | ||
| C. | c) Echinodermata | ||
| D. | d) Mollusca | ||
| 9. | 10. Name the first vertebrate which possessed amniotic egg? | ||
| A. | a) Amphibia | ||
| B. | b) Aves | ||
| C. | c) Reptilia | ||
| D. | d) Mammalia | ||
| 10. | 11. Which of the following is known as scavengers in the marine ecosystem? | ||
| A. | a) Lamprey | ||
| B. | b) Hagfish | ||
| C. | c) Scoliodon | ||
| D. | d) Pristis | ||
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