Curriculum & Exam Preparation Note: Regular practice of NCERT textbook exercises and chapter-end questions establishes strong conceptual clarity for primary and secondary examinations.
| 1) | Endostyle of Urochordates | Thyroid of man |
| 2) | Chloragogen cells of earthworm | liver of man |
| 3) | Companion cells of phloem | albuminous cell of conifers |
| 4) | Starch Sheath of sterm is homologous to endodermis | endodermoid |
| 5) | Megasporophyll of cycas | Carpels of angiosperms |
| 6) | Micro Megasporophyll of cycas | Stamens of angiosperms |
| 7) | Prothallial cell of pollen grain | male gametophyte |
| 8) | Mesosome of prokaryotes | mitrochondria of eukaryotes |
| 9) | Megasponangia blaring pteridophytes | Carpels of angiosperm |
| 10) | acropetal arrangement of flower | Centripetal arrangement |
| 11) | Contractile Vacuole of paramecium | uriniferous tubule |
| 12) | Endosperm of pinus | prothallus of adiantum |
| 13) | Central axis of cone | thalamus of flower |
| 14) | Muller organ of protochordate | pituitary of vertebrates |
| 15) | Labia majora | Scrotum of male |
| 16) | Clitoris | penis in male |
| 17) | Muller՚s organ of amphioxus | pituitary gland of man |