The unit in one line
How animals behave and adapt, how pollution harms them, and how Nepal protects what is left. 2 of Zoology's 40 questions over four chapters — half a question a chapter on average, and the quickest marks to lose to a stale number.
Read in this order
- Animal behaviour (9 min) — reflexes, conditioned and unconditioned, the taxes, and migration.
- Environmental pollution (9 min) — air, water and soil pollution, pesticides, biomagnification and heavy metals.
- Adaptations (9 min) — aquatic, terrestrial and volant animals, feature by feature.
- Conservation biology (9 min) — biodiversity, hotspots, Nepal's protected areas and Ramsar sites, the IUCN categories and Nepal's endangered species.
About 36 minutes in all.
How it is asked
Recall is lists and names: the IUCN categories in order, a Ramsar site, which national park protects which animal. Understanding is why DDT concentrates up a food chain, or why a whale is streamlined. Application describes a movement, a habitat or a polluted river and asks for the taxis, the adaptation or the cause.
Nepal's counts change — a new national park, a fresh tiger census. The conservation note gives each figure with its year and source; check the year before you memorise the number.
Then practise
Each chapter has a chapter test under Practice › Topics.