| Pair of skeletal parts | Category | |
|---|---|---|
| (a)$\,\,$ | Sternum and ribs$\,\,$ | Axial skeleton |
| (b)$\,\,$ | Clavicle and glenoid cavity$\,\,$ | Pelvic girdle |
| (c)$\,\,$ | Flumerus and ulna$\,\,$ | Appendicular skeleton |
| (d)$\,\,$ | Malleus and stapes$\,\,$ | Ear ossicles |

Match List I with List II.
List I (Interacting species) | List II (Name of interaction) | ||
| A | Leopard and a Lion in a forest/grassland | I | Competition |
| B | A Cuckoo laying egg in a Crow’s nest | II | Brood parasitism |
| C | Fungi and root of a higher plant in Mycorrhizae | III | Mutualism |
| D | A cattle egret and a Cattle in a field | IV | Commensalism |
Choose the correct answer from the options given below
List I | List II | ||
| A | Logistic growth | I | Unlimited resource availability condition |
| B | Exponential growth | II | Limited resource availability condition |
| C | Expanding age pyramid | III | The percent individuals of pre-reproductive age is largest followed by reproductive and post reproductive age groups |
| D | Stable age pyramid | IV | The percent individuals of pre-reproductives and reproductive age group are same |