Nirk 1. Võrdle nirgi suve- ja talve kasukat. ..................................................................................................................................................... .................................................................................................................................................... .................................................................................................................................................. 2. Millest nirk peamiselt toitub? Kuidas ta oma saaki püüab? .................................................................................................................................................. ................................................................................................................................................. .................................................................................................................................................. ................................................................................................................................................. 3. Miks on nirk ja kärp omavahel konkurendid? .................................................................................................................................................... .................................................................................................................................................... 4. Millised nirgi tunnused viitavad sellele, et ta on kiskja? ................................................................................................................................................... .................................................................................................................................................... 5. Nimeta teisi Eestis elavaid kärplasi peale nirgi ja kärbi? .................................................................................................................................................. ................................................................................................................................................. 6. Miks võib nirki kohata vahel elamute lähedusest? ............................................................................................................................................... ............................................................................................................................................... ............................................................................................................................................... |